RHSA-2026:57483

Vulnerability from csaf_redhat - Published: 2026-08-26 15:56 - Updated: 2026-08-26 22:04
Summary
Red Hat Security Advisory: OpenShift Container Platform 4.18.54 bug fix and security update
Severity
Important
Notes
Topic: Red Hat OpenShift Container Platform release 4.18.54 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.18. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.18.54. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHSA-2026:57482 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/ Security Fix(es): * samba: Missing access check on reparse point operations (CVE-2026-1933) * samba: group policy certificate enrollment uses http:// without validation (CVE-2026-3012) * samba: Remote Code Execution in SAMR (CVE-2026-4408) * sssd: sssd: sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation (CVE-2026-14474) * gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment (CVE-2026-33845) * gnutls: GnuTLS: Denial of Service via heap buffer overflow in DTLS handshake fragment reassembly (CVE-2026-33846) * vim: arbitrary command execution via modeline sandbox bypass (CVE-2026-34982) * gnutls: gnutls: Denial of Service via DTLS packet reordering vulnerability (CVE-2026-42009) * gnutls: gnutls: Authentication Bypass via NUL Character in Username (CVE-2026-42010) * kernel: net: openvswitch: reject oversized nested action attrs (CVE-2026-64531) * samba: vfs_worm does not block directory modification (CVE-2026-2340) * gnutls: gnutls: Information disclosure via heap overread in RSA key exchange (CVE-2026-5260) * glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier and large width (CVE-2026-5450) * sssd: sssd: GPO cache path traversal via unsanitized gPCFileSysPath allows Kerberos authentication bypass (CVE-2026-14476) * vim: zip.vim: Vim zip.vim plugin: Arbitrary file overwrite via path traversal bypass (CVE-2026-35177) * vim: Vim: Command injection allows arbitrary code execution via malicious tag files (CVE-2026-41411) * gnutls: gnutls: Security bypass due to incorrect name constraint handling (CVE-2026-42011) * gnutls: gnutls: Certificate validation bypass due to oversized Subject Alternative Name (CVE-2026-42013) * vim: command injection when decompressing .tgz archives (CVE-2026-46483) * libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data (CVE-2026-48864) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. All OpenShift Container Platform 4.18 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-1933

A flaw was found in Samba’s handling of NTFS-style reparse points on shares configured with read only = yes. Due to missing SMB-layer access checks, authenticated users with underlying filesystem write permissions may create or delete reparse point metadata through SMB operations even on read-only exports. This could allow modification of SMB-visible file behavior, including converting files into symbolic links or other reparse point types.

7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CWE-284 - Improper Access Control
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-2340

A flaw was found in Samba’s vfs_worm module. The module is intended to provide write-once, read-many (WORM) protections by preventing modification of files after a configurable grace period. Due to insufficient validation during rename operations, an authenticated user with write access to a share could overwrite a protected file by renaming a newly created file over the existing WORM-protected file.

6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
CVE-2026-3012

A flaw was found in Samba’s certificate auto-enrollment Group Policy handling. When certificate auto-enrollment is enabled, Samba may retrieve a CA certificate over an unencrypted HTTP connection and install it into the local trust store without proper verification. An attacker with the ability to intercept or redirect network traffic could exploit this behavior to supply a malicious certificate authority certificate, potentially allowing interception or spoofing of trusted communications.

8.0 (High)
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
CWE-345 - Insufficient Verification of Data Authenticity
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-4408

A flaw was found in Samba. A remote attacker can exploit a misconfiguration in Samba file servers and classic domain controllers that use the "check password script" feature. If this script is configured with the %u substitution character, the client-controlled username is passed without proper escaping of shell meta-characters. This vulnerability allows an attacker to achieve remote command execution on the affected system. This issue primarily affects non-standard configurations where the "check password script" is used with %u and the samba-dcerpcd service is started as a system service.

9.0 (Critical)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-5260

A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS#11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure.

8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CWE-126 - Buffer Over-read
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Threats
Impact Moderate
CVE-2026-5450

A flaw was found in glibc (GNU C Library). This vulnerability occurs when an application uses the `scanf` family of functions with a `%mc` format specifier, which is used for dynamically allocating memory for character input, and provides an explicit width greater than 1024. This specific combination can lead to a one-byte heap buffer overflow, potentially allowing an attacker to corrupt memory.

5.0 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:H
CWE-131 - Incorrect Calculation of Buffer Size
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
CVE-2026-14474

A flaw was found in SSSD's LDAP sudo provider. When the ldap_sudo_search_base option is not explicitly configured, SSSD searches the entire LDAP directory tree for sudoRole objects. An authenticated attacker with write access to any subtree can inject a sudoRole object granting root-level sudo privileges on all SSSD-enrolled hosts.

8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-1188 - Initialization of a Resource with an Insecure Default
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-14476

A path traversal flaw was found in SSSD's AD GPO provider. The ad_gpo_extract_smb_components() function does not sanitize .. sequences in the gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management access to write files outside the GPO cache directory as root. On default RHEL configurations with SELinux enforcing, this can be used to inject Kerberos configuration leading to authentication bypass.

8.0 (High)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE-23 - Relative Path Traversal
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
CVE-2026-33845

A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-191 - Integer Underflow (Wrap or Wraparound)
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-33846

A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in merge_handshake_packet() where incoming handshake fragments are matched and merged based solely on handshake type, without validating that the message_length field remains consistent across all fragments of the same logical message. An attacker can exploit this by sending crafted DTLS fragments with conflicting message_length values, causing the implementation to allocate a buffer based on a smaller initial fragment and subsequently write beyond its bounds using larger, inconsistent fragments. Because the merge operation does not enforce proper bounds checking against the allocated buffer size, this results in an out-of-bounds write on the heap. The vulnerability is remotely exploitable without authentication via the DTLS handshake path and can lead to application crashes or potential memory corruption.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-130 - Improper Handling of Length Parameter Inconsistency
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-34982

A flaw was found in Vim. A modeline is used to set specific editor options directly from a text file. However, the `complete`, `guitabtooltip`, `printheader` options and the `mapset` function lack proper security checks, allowing an attacker to bypass restrictions and cause arbitrary OS command execution.

8.2 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
CVE-2026-35177

A flaw was found in Vim's zip.vim plugin. A local user could be tricked into opening a specially crafted zip archive, which would allow a path traversal bypass. This vulnerability enables an attacker to overwrite arbitrary files on the system, potentially leading to data integrity issues or further system compromise.

4.1 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:L
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
CVE-2026-41411

A flaw was found in Vim, an open-source command-line text editor. This command injection vulnerability occurs during tag file processing. A local user could craft a malicious tags file containing backtick syntax in the filename field. When Vim resolves a tag from this file, it executes the embedded command via the system shell, leading to arbitrary code execution with the privileges of the running user.

7.3 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
CVE-2026-42009

A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security (DTLS) packet reordering logic. The comparator function, responsible for ordering DTLS packets by sequence numbers, did not correctly handle packets with duplicate sequence numbers. This could lead to unstable packet ordering or undefined behavior, resulting in a denial of service.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-475 - Undefined Behavior for Input to API
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Threats
Impact Important
CVE-2026-42010

A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass. This vulnerability allows an attacker to gain unauthorized access by circumventing the authentication process.

7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CWE-170 - Improper Null Termination
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Threats
Impact Important
CVE-2026-42011

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities (CAs) only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate validation. This bypass could lead to the acceptance of invalid certificates, potentially enabling spoofing or man-in-the-middle attacks against affected systems.

7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-295 - Improper Certificate Validation
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Threats
Impact Moderate
CVE-2026-42013

A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name (SAN) could cause the validation process to incorrectly fall back to checking the Common Name (CN) field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to spoofing or man-in-the-middle attacks.

8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
CWE-295 - Improper Certificate Validation
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Threats
Impact Moderate
CVE-2026-46483

A flaw was found in Vim. When decompressing .tgz archives, the Vimuntar function builds shell commands using shellescape() without the {special} flag. This allows a specially crafted archive filename to trigger Vim cmdline-special expansion and execute arbitrary commands in the context of the current user.

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
CVE-2026-48864

A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-787 - Out-of-bounds Write
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
CVE-2026-64531

A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a local privilege escalation (LPE).

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-130 - Improper Handling of Length Parameter Inconsistency
Affected products
Product Identifier Version Remediation
Unresolved product id: 9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Unresolved product id: 9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0 —
Vendor Fix fix
Workaround
Threats
Impact Important
References
URL Category
https://access.redhat.com/errata/RHSA-2026:57483 self
https://access.redhat.com/security/updates/classi… external
https://bugzilla.redhat.com/show_bug.cgi?id=2447317 external
https://bugzilla.redhat.com/show_bug.cgi?id=2447318 external
https://bugzilla.redhat.com/show_bug.cgi?id=2447319 external
https://bugzilla.redhat.com/show_bug.cgi?id=2450624 external
https://bugzilla.redhat.com/show_bug.cgi?id=2450625 external
https://bugzilla.redhat.com/show_bug.cgi?id=2455400 external
https://bugzilla.redhat.com/show_bug.cgi?id=2455542 external
https://bugzilla.redhat.com/show_bug.cgi?id=2459853 external
https://bugzilla.redhat.com/show_bug.cgi?id=2460425 external
https://bugzilla.redhat.com/show_bug.cgi?id=2461614 external
https://bugzilla.redhat.com/show_bug.cgi?id=2467279 external
https://bugzilla.redhat.com/show_bug.cgi?id=2467289 external
https://bugzilla.redhat.com/show_bug.cgi?id=2467437 external
https://bugzilla.redhat.com/show_bug.cgi?id=2467448 external
https://bugzilla.redhat.com/show_bug.cgi?id=2467450 external
https://bugzilla.redhat.com/show_bug.cgi?id=2477915 external
https://bugzilla.redhat.com/show_bug.cgi?id=2479762 external
https://bugzilla.redhat.com/show_bug.cgi?id=2496556 external
https://bugzilla.redhat.com/show_bug.cgi?id=2496581 external
https://bugzilla.redhat.com/show_bug.cgi?id=2507402 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2026-1933 self
https://bugzilla.redhat.com/show_bug.cgi?id=2447317 external
https://www.cve.org/CVERecord?id=CVE-2026-1933 external
https://nvd.nist.gov/vuln/detail/CVE-2026-1933 external
https://bugzilla.samba.org/show_bug.cgi?id=15992 external
https://access.redhat.com/security/cve/CVE-2026-2340 self
https://bugzilla.redhat.com/show_bug.cgi?id=2447318 external
https://www.cve.org/CVERecord?id=CVE-2026-2340 external
https://nvd.nist.gov/vuln/detail/CVE-2026-2340 external
https://bugzilla.samba.org/show_bug.cgi?id=15997 external
https://access.redhat.com/security/cve/CVE-2026-3012 self
https://bugzilla.redhat.com/show_bug.cgi?id=2447319 external
https://www.cve.org/CVERecord?id=CVE-2026-3012 external
https://nvd.nist.gov/vuln/detail/CVE-2026-3012 external
https://bugzilla.samba.org/show_bug.cgi?id=16003 external
https://access.redhat.com/security/cve/CVE-2026-4408 self
https://bugzilla.redhat.com/show_bug.cgi?id=2479762 external
https://www.cve.org/CVERecord?id=CVE-2026-4408 external
https://nvd.nist.gov/vuln/detail/CVE-2026-4408 external
https://bugzilla.samba.org/show_bug.cgi?id=16034 external
https://access.redhat.com/security/cve/CVE-2026-5260 self
https://bugzilla.redhat.com/show_bug.cgi?id=2467450 external
https://www.cve.org/CVERecord?id=CVE-2026-5260 external
https://nvd.nist.gov/vuln/detail/CVE-2026-5260 external
https://www.gnutls.org/security-new.html#GNUTLS-S… external
https://access.redhat.com/security/cve/CVE-2026-5450 self
https://bugzilla.redhat.com/show_bug.cgi?id=2459853 external
https://www.cve.org/CVERecord?id=CVE-2026-5450 external
https://nvd.nist.gov/vuln/detail/CVE-2026-5450 external
https://inbox.sourceware.org/libc-announce/b11f00… external
https://nvd.nist.gov/vuln/detail/CVE-2026-5450#ra… external
https://sourceware.org/bugzilla/show_bug.cgi?id=C… external
https://access.redhat.com/security/cve/CVE-2026-14474 self
https://bugzilla.redhat.com/show_bug.cgi?id=2496556 external
https://www.cve.org/CVERecord?id=CVE-2026-14474 external
https://nvd.nist.gov/vuln/detail/CVE-2026-14474 external
https://access.redhat.com/security/cve/CVE-2026-14476 self
https://bugzilla.redhat.com/show_bug.cgi?id=2496581 external
https://www.cve.org/CVERecord?id=CVE-2026-14476 external
https://nvd.nist.gov/vuln/detail/CVE-2026-14476 external
https://access.redhat.com/security/cve/CVE-2026-33845 self
https://bugzilla.redhat.com/show_bug.cgi?id=2450624 external
https://www.cve.org/CVERecord?id=CVE-2026-33845 external
https://nvd.nist.gov/vuln/detail/CVE-2026-33845 external
https://access.redhat.com/security/cve/CVE-2026-33846 self
https://bugzilla.redhat.com/show_bug.cgi?id=2450625 external
https://www.cve.org/CVERecord?id=CVE-2026-33846 external
https://nvd.nist.gov/vuln/detail/CVE-2026-33846 external
https://access.redhat.com/security/cve/CVE-2026-34982 self
https://bugzilla.redhat.com/show_bug.cgi?id=2455400 external
https://www.cve.org/CVERecord?id=CVE-2026-34982 external
https://nvd.nist.gov/vuln/detail/CVE-2026-34982 external
http://www.openwall.com/lists/oss-security/2026/04/01/1 external
https://github.com/vim/vim/commit/75661a66a1db1e1… external
https://github.com/vim/vim/releases/tag/v9.2.0276 external
https://github.com/vim/vim/security/advisories/GH… external
https://access.redhat.com/security/cve/CVE-2026-35177 self
https://bugzilla.redhat.com/show_bug.cgi?id=2455542 external
https://www.cve.org/CVERecord?id=CVE-2026-35177 external
https://nvd.nist.gov/vuln/detail/CVE-2026-35177 external
https://github.com/vim/vim/security/advisories/GH… external
https://access.redhat.com/security/cve/CVE-2026-41411 self
https://bugzilla.redhat.com/show_bug.cgi?id=2461614 external
https://www.cve.org/CVERecord?id=CVE-2026-41411 external
https://nvd.nist.gov/vuln/detail/CVE-2026-41411 external
https://github.com/vim/vim/commit/c78194e41d5a0b0… external
https://github.com/vim/vim/releases/tag/v9.2.0357 external
https://github.com/vim/vim/security/advisories/GH… external
https://access.redhat.com/security/cve/CVE-2026-42009 self
https://bugzilla.redhat.com/show_bug.cgi?id=2467279 external
https://www.cve.org/CVERecord?id=CVE-2026-42009 external
https://nvd.nist.gov/vuln/detail/CVE-2026-42009 external
https://www.gnutls.org/security-new.html#GNUTLS-S… external
https://access.redhat.com/security/cve/CVE-2026-42010 self
https://bugzilla.redhat.com/show_bug.cgi?id=2467289 external
https://www.cve.org/CVERecord?id=CVE-2026-42010 external
https://nvd.nist.gov/vuln/detail/CVE-2026-42010 external
https://www.gnutls.org/security-new.html#GNUTLS-S… external
https://access.redhat.com/security/cve/CVE-2026-42011 self
https://bugzilla.redhat.com/show_bug.cgi?id=2467437 external
https://www.cve.org/CVERecord?id=CVE-2026-42011 external
https://nvd.nist.gov/vuln/detail/CVE-2026-42011 external
https://www.gnutls.org/security-new.html#GNUTLS-S… external
https://access.redhat.com/security/cve/CVE-2026-42013 self
https://bugzilla.redhat.com/show_bug.cgi?id=2467448 external
https://www.cve.org/CVERecord?id=CVE-2026-42013 external
https://nvd.nist.gov/vuln/detail/CVE-2026-42013 external
https://www.gnutls.org/security-new.html#GNUTLS-S… external
https://access.redhat.com/security/cve/CVE-2026-46483 self
https://bugzilla.redhat.com/show_bug.cgi?id=2477915 external
https://www.cve.org/CVERecord?id=CVE-2026-46483 external
https://nvd.nist.gov/vuln/detail/CVE-2026-46483 external
https://github.com/vim/vim/commit/3fb5e58fbc63d86… external
https://github.com/vim/vim/releases/tag/v9.2.0479 external
https://github.com/vim/vim/security/advisories/GH… external
https://access.redhat.com/security/cve/CVE-2026-48864 self
https://bugzilla.redhat.com/show_bug.cgi?id=2460425 external
https://www.cve.org/CVERecord?id=CVE-2026-48864 external
https://nvd.nist.gov/vuln/detail/CVE-2026-48864 external
https://access.redhat.com/security/cve/CVE-2026-64531 self
https://bugzilla.redhat.com/show_bug.cgi?id=2507402 external
https://www.cve.org/CVERecord?id=CVE-2026-64531 external
https://nvd.nist.gov/vuln/detail/CVE-2026-64531 external
https://lore.kernel.org/linux-cve-announce/202607… external
Acknowledgments
Asim Viladi Oglu Manizada
Aisle Research Pavel Kohout
DREAM Security Research Team Arad Inbar Nir Somech Ben Grinberg
Michalis Vasileiadis
SafeBreach Ron Ben Yizhak
ZeroPath John Walker
AISLE Research Team Joshua Rogers
Red Hat Ian Murphy
Stella Haruto Kimura
To clipboard 

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        "text": "Red Hat OpenShift Container Platform is Red Hat\u0027s cloud computing\nKubernetes application platform solution designed for on-premise or private\ncloud deployments.\n\nThis advisory contains the container images for Red Hat OpenShift Container\nPlatform 4.18.54. See the following advisory for the RPM packages for this\nrelease:\n\nhttps://access.redhat.com/errata/RHSA-2026:57482\n\nSpace precludes documenting all of the container images in this advisory.\nSee the following Release Notes documentation, which will be updated\nshortly for this release, for details about these changes:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nSecurity Fix(es):\n\n* samba: Missing access check on reparse point operations (CVE-2026-1933)\n* samba: group policy certificate enrollment uses http:// without\nvalidation (CVE-2026-3012)\n* samba: Remote Code Execution in SAMR (CVE-2026-4408)\n* sssd: sssd: sudo LDAP provider searches entire directory tree for\nsudoRole objects by default, enabling privilege escalation (CVE-2026-14474)\n* gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment\n(CVE-2026-33845)\n* gnutls: GnuTLS: Denial of Service via heap buffer overflow in DTLS\nhandshake fragment reassembly (CVE-2026-33846)\n* vim: arbitrary command execution via modeline sandbox bypass\n(CVE-2026-34982)\n* gnutls: gnutls: Denial of Service via DTLS packet reordering\nvulnerability (CVE-2026-42009)\n* gnutls: gnutls: Authentication Bypass via NUL Character in Username\n(CVE-2026-42010)\n* kernel: net: openvswitch: reject oversized nested action attrs\n(CVE-2026-64531)\n* samba: vfs_worm does not block directory modification (CVE-2026-2340)\n* gnutls: gnutls: Information disclosure via heap overread in RSA key\nexchange (CVE-2026-5260)\n* glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier\nand large width (CVE-2026-5450)\n* sssd: sssd: GPO cache path traversal via unsanitized gPCFileSysPath\nallows Kerberos authentication bypass (CVE-2026-14476)\n* vim: zip.vim: Vim zip.vim plugin: Arbitrary file overwrite via path\ntraversal bypass (CVE-2026-35177)\n* vim: Vim: Command injection allows arbitrary code execution via malicious\ntag files (CVE-2026-41411)\n* gnutls: gnutls: Security bypass due to incorrect name constraint handling\n(CVE-2026-42011)\n* gnutls: gnutls: Certificate validation bypass due to oversized Subject\nAlternative Name (CVE-2026-42013)\n* vim: command injection when decompressing .tgz archives (CVE-2026-46483)\n* libsolv: Heap buffer overflow in libsolv repopagestore via unchecked\ndecompression of malicious .solv page data (CVE-2026-48864)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section.\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
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        "full_product_name": {
          "name": "rhcos-ppc64le-418.94.202608142238-0 as a component of Red Hat OpenShift Container Platform 4.18",
          "product_id": "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0"
        },
        "product_reference": "rhcos-ppc64le-418.94.202608142238-0",
        "relates_to_product_reference": "9Base-RHOSE-4.18"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "rhcos-s390x-418.94.202608142238-0 as a component of Red Hat OpenShift Container Platform 4.18",
          "product_id": "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0"
        },
        "product_reference": "rhcos-s390x-418.94.202608142238-0",
        "relates_to_product_reference": "9Base-RHOSE-4.18"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "rhcos-x86_64-418.94.202608142238-0 as a component of Red Hat OpenShift Container Platform 4.18",
          "product_id": "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        },
        "product_reference": "rhcos-x86_64-418.94.202608142238-0",
        "relates_to_product_reference": "9Base-RHOSE-4.18"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Asim Viladi Oglu Manizada"
          ]
        }
      ],
      "cve": "CVE-2026-1933",
      "cwe": {
        "id": "CWE-284",
        "name": "Improper Access Control"
      },
      "discovery_date": "2026-03-13T08:29:39.852000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2447317"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Samba\u2019s handling of NTFS-style reparse points on shares configured with read only = yes. Due to missing SMB-layer access checks, authenticated users with underlying filesystem write permissions may create or delete reparse point metadata through SMB operations even on read-only exports. This could allow modification of SMB-visible file behavior, including converting files into symbolic links or other reparse point types.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "samba: Missing access check on reparse point operations",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated Important severity by Red Hat Product Security, because authenticated users with filesystem-level write permissions may bypass Samba\u2019s SMB-layer read-only protections for reparse point operations.\n\nThe flaw affects shares configured with \"read only = yes\", where Samba failed to properly enforce access checks when setting or deleting reparse point metadata. An attacker with existing write permissions on the underlying filesystem may manipulate SMB reparse point metadata to alter how files are presented to SMB clients, including converting files into symbolic links.\n\nThe vulnerability does not bypass underlying filesystem access controls or grant additional operating system privileges. However, successful exploitation may significantly disrupt file access for users of the affected share, including making large portions of a shared filesystem unavailable through widespread reparse point modification. Because the attack requires authenticated access and existing filesystem write permissions, Privileges Required are assessed as Low (PR:L).\n\n```\n\nThis vulnerability affects Samba versions beginning with the introduction of NTFS-style reparse point support in Samba 4.21.\n\n```",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-1933"
        },
        {
          "category": "external",
          "summary": "RHBZ#2447317",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447317"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-1933",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-1933"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-1933",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1933"
        },
        {
          "category": "external",
          "summary": "https://bugzilla.samba.org/show_bug.cgi?id=15992",
          "url": "https://bugzilla.samba.org/show_bug.cgi?id=15992"
        }
      ],
      "release_date": "2026-05-27T12:08:33.095000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Administrators can mitigate this issue by ensuring users who access a read only = yes Samba share do not have filesystem-level write permission to the exported files.\n\nA server administrator may also monitor and remove unintended \"user.SmbReparse\" xattr (extended attributes) and the associated FILE_ATTRIBUTE_REPARSE_POINT \"user.DosAttrib\" bit metadata if exploitation is suspected.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "samba: Missing access check on reparse point operations"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Pavel Kohout"
          ],
          "organization": "Aisle Research"
        }
      ],
      "cve": "CVE-2026-2340",
      "cwe": {
        "id": "CWE-280",
        "name": "Improper Handling of Insufficient Permissions or Privileges"
      },
      "discovery_date": "2026-03-13T12:55:04.465000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2447318"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Samba\u2019s vfs_worm module. The module is intended to provide write-once, read-many (WORM) protections by preventing modification of files after a configurable grace period. Due to insufficient validation during rename operations, an authenticated user with write access to a share could overwrite a protected file by renaming a newly created file over the existing WORM-protected file.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "samba: vfs_worm does not block directory modification",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated Moderate severity because exploitation requires authenticated write access to a Samba share already configured to permit file creation and modification.\n\nThe flaw affects the vfs_worm module, which provides additional immutability protections for files after a configurable grace period. Due to improper handling of rename operations, a user with existing write permissions could overwrite files that should have become immutable under the WORM policy.\n\nThe vulnerability does not bypass underlying filesystem access controls or grant additional privileges beyond those already assigned to the authenticated user. However, because the primary purpose of the vfs_worm module is to protect file integrity, the ability to modify protected files results in a high integrity impact.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-2340"
        },
        {
          "category": "external",
          "summary": "RHBZ#2447318",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447318"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-2340",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-2340"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-2340",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2340"
        },
        {
          "category": "external",
          "summary": "https://bugzilla.samba.org/show_bug.cgi?id=15997",
          "url": "https://bugzilla.samba.org/show_bug.cgi?id=15997"
        }
      ],
      "release_date": "2026-05-27T10:35:47.805000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Administrators can mitigate this issue by:\n\nSetting read-only permissions on protected files at the underlying filesystem level will prevent modifications.\n\nConfiguring ```worm:grace_period = 0``` (zero or less) in smb.conf will eliminate the writable grace period (will eliminate the window in which the rename can happen), understanding that this may impact workflows requiring multi-step file creation.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "samba: vfs_worm does not block directory modification"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Arad Inbar",
            "Nir Somech",
            "Ben Grinberg"
          ],
          "organization": "DREAM Security Research Team"
        },
        {
          "names": [
            "Michalis Vasileiadis"
          ]
        }
      ],
      "cve": "CVE-2026-3012",
      "cwe": {
        "id": "CWE-345",
        "name": "Insufficient Verification of Data Authenticity"
      },
      "discovery_date": "2026-03-13T12:55:02.623000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2447319"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Samba\u2019s certificate auto-enrollment Group Policy handling. When certificate auto-enrollment is enabled, Samba may retrieve a CA certificate over an unencrypted HTTP connection and install it into the local trust store without proper verification. An attacker with the ability to intercept or redirect network traffic could exploit this behavior to supply a malicious certificate authority certificate, potentially allowing interception or spoofing of trusted communications.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "samba: group policy certificate enrollment uses http:// without validation",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat Product Security has rated this vulnerability as Important severity. \n\nHowever, exploitation requires several specific non-default conditions to be met. The vulnerable code path is only reachable when Samba Group Policy processing is explicitly enabled using the ```apply group policies = yes``` configuration option and certificate auto-enrollment is configured through Group Policy.\n\nHence, although the vulnerable code is present, it is not exploitable in default RHEL configurations. \n\nIn addition, the attacker must have the ability to intercept or redirect adjacent-network HTTP traffic during certificate retrieval. Because exploitation depends on explicit administrative configuration changes and adjacent-network positioning, Red Hat assesses the attack complexity as High (AC:H).",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-3012"
        },
        {
          "category": "external",
          "summary": "RHBZ#2447319",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447319"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-3012",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-3012"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-3012",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3012"
        },
        {
          "category": "external",
          "summary": "https://bugzilla.samba.org/show_bug.cgi?id=16003",
          "url": "https://bugzilla.samba.org/show_bug.cgi?id=16003"
        }
      ],
      "release_date": "2026-05-27T09:17:49.862000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Systems are not affected unless Samba Group Policy processing and certificate auto-enrollment are explicitly enabled.\n\nAdministrators can reduce exposure by:\n\nAvoiding unnecessary use of certificate auto-enrollment.\nEnsuring your \"smb.conf\" does not contain a line like ```apply group policies = yes```. If , group policy is not be enabled, the vulnerable code will not run.\n\nIntercepting the HTTP request requires some control over the local network or other devices to intercept or redirect traffic. Some network administrators might assess this as a low risk on their\nnetworks.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "samba: group policy certificate enrollment uses http:// without validation"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Ron Ben Yizhak"
          ],
          "organization": "SafeBreach"
        },
        {
          "names": [
            "John Walker"
          ],
          "organization": "ZeroPath"
        }
      ],
      "cve": "CVE-2026-4408",
      "cwe": {
        "id": "CWE-78",
        "name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)"
      },
      "discovery_date": "2026-05-19T09:24:56.961000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2479762"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Samba. A remote attacker can exploit a misconfiguration in Samba file servers and classic domain controllers that use the \"check password script\" feature. If this script is configured with the %u substitution character, the client-controlled username is passed without proper escaping of shell meta-characters. This vulnerability allows an attacker to achieve remote command execution on the affected system. This issue primarily affects non-standard configurations where the \"check password script\" is used with %u and the samba-dcerpcd service is started as a system service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "samba: Remote Code Execution in SAMR",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "An Important remote code execution flaw exists in Samba file servers and classic domain controllers when configured with a \u0027check password script\u0027 that uses the unescaped \u0027%u\u0027 substitution character. This vulnerability arises from a non-default configuration where the `samba-dcerpcd` service is started as a system service, allowing an attacker to execute arbitrary commands by injecting shell meta-characters into the username. Active Directory Domain Controllers are not affected.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-4408"
        },
        {
          "category": "external",
          "summary": "RHBZ#2479762",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479762"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4408",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-4408"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4408",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4408"
        },
        {
          "category": "external",
          "summary": "https://bugzilla.samba.org/show_bug.cgi?id=16034",
          "url": "https://bugzilla.samba.org/show_bug.cgi?id=16034"
        }
      ],
      "release_date": "2026-05-26T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.0,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "samba: Remote Code Execution in SAMR"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Joshua Rogers"
          ],
          "organization": "AISLE Research Team"
        }
      ],
      "cve": "CVE-2026-5260",
      "cwe": {
        "id": "CWE-126",
        "name": "Buffer Over-read"
      },
      "discovery_date": "2026-05-06T19:50:31.302000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2467450"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS#11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "gnutls: gnutls: Information disclosure via heap overread in RSA key exchange",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-5260"
        },
        {
          "category": "external",
          "summary": "RHBZ#2467450",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467450"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-5260",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-5260"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-5260",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5260"
        },
        {
          "category": "external",
          "summary": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-10",
          "url": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-10"
        }
      ],
      "release_date": "2026-04-29T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "gnutls: gnutls: Information disclosure via heap overread in RSA key exchange"
    },
    {
      "cve": "CVE-2026-5450",
      "cwe": {
        "id": "CWE-131",
        "name": "Incorrect Calculation of Buffer Size"
      },
      "discovery_date": "2026-04-20T21:01:35.403778+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2459853"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in glibc (GNU C Library). This vulnerability occurs when an application uses the `scanf` family of functions with a `%mc` format specifier, which is used for dynamically allocating memory for character input, and provides an explicit width greater than 1024. This specific combination can lead to a one-byte heap buffer overflow, potentially allowing an attacker to corrupt memory.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier and large width",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Because this flaw requires that an affected application call the affected functions with an attacker-supplied value, Red Hat assesses the Attack Complexity of this flaw as High. Additionally, the flaw overflows a single byte onto the heap, so meaningful exploitation requires that the heap is structured such that a single byte can lead to an attacker-controlled outcome, or that the affected functions can be invoked with an attacker-controlled buffer base address. Regarding Attack Vector and Privileges Required, Red Hat assesses these elements as Local and Low respectively, as remote unauthenticated exploitation would require all the conditions above in a library client that listened on a network port and processed attacker-controllable data with the affected library functions.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-5450"
        },
        {
          "category": "external",
          "summary": "RHBZ#2459853",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2459853"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-5450",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-5450"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-5450",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5450"
        },
        {
          "category": "external",
          "summary": "https://inbox.sourceware.org/libc-announce/b11f0003-6ec1-4bd6-b9de-9e38a4efeca3@redhat.com/T/#u",
          "url": "https://inbox.sourceware.org/libc-announce/b11f0003-6ec1-4bd6-b9de-9e38a4efeca3@redhat.com/T/#u"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-5450#range-21286997",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5450#range-21286997"
        },
        {
          "category": "external",
          "summary": "https://sourceware.org/bugzilla/show_bug.cgi?id=CVE-2026-5450",
          "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=CVE-2026-5450"
        }
      ],
      "release_date": "2026-04-20T20:55:41.170000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.0,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "glibc: glibc: Heap Buffer Overflow in `scanf` with `%mc` format specifier and large width"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Ian Murphy"
          ],
          "organization": "Red Hat",
          "summary": "This issue was discovered by Red Hat."
        }
      ],
      "cve": "CVE-2026-14474",
      "cwe": {
        "id": "CWE-1188",
        "name": "Initialization of a Resource with an Insecure Default"
      },
      "discovery_date": "2026-04-28T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2496556"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in SSSD\u0027s LDAP sudo provider. When the ldap_sudo_search_base option is not explicitly configured, SSSD searches the entire LDAP directory tree for sudoRole objects. An authenticated attacker with write access to any subtree can inject a sudoRole object granting root-level sudo privileges on all SSSD-enrolled hosts.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "sssd: sssd: sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat has rated this as Important because the attack requires only low-privilege delegated LDAP write access to any subtree, which is a common delegation pattern in enterprise environments. The default ldap_sudo_search_base configuration searches the entire directory tree, allowing sudo rule injection from outside the intended sudoers container.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-14474"
        },
        {
          "category": "external",
          "summary": "RHBZ#2496556",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2496556"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-14474",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-14474"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-14474",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14474"
        }
      ],
      "release_date": "2026-07-07T09:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Set ldap_sudo_search_base explicitly in /etc/sssd/sssd.conf to restrict the search to the designated sudoers container:\n\n[domain/example.com] ldap_sudo_search_base = ou=sudoers,dc=example,dc=com\n\nAdditionally, restrict LDAP ACLs to prevent non-admin principals from creating sudoRole objects outside the designated sudoers container.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "sssd: sssd: sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Ian Murphy"
          ],
          "organization": "Red Hat",
          "summary": "This issue was discovered by Red Hat."
        }
      ],
      "cve": "CVE-2026-14476",
      "cwe": {
        "id": "CWE-23",
        "name": "Relative Path Traversal"
      },
      "discovery_date": "2026-04-28T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2496581"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A path traversal flaw was found in SSSD\u0027s AD GPO provider. The ad_gpo_extract_smb_components() function does not sanitize .. sequences in the gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management access to write files outside the GPO cache directory as root. On default RHEL configurations with SELinux enforcing, this can be used to inject Kerberos configuration leading to authentication bypass.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "sssd: sssd: GPO cache path traversal via unsanitized gPCFileSysPath allows Kerberos authentication bypass",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat has rated this as Moderate because exploitation requires high privileges (AD GPO management access) and on default RHEL configurations with SELinux enforcing, the realistic impact is limited to Kerberos authentication bypass via krb5 configuration injection. SELinux blocks writes to most security-critical paths such as /etc/cron.d/.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-14476"
        },
        {
          "category": "external",
          "summary": "RHBZ#2496581",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2496581"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-14476",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-14476"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-14476",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14476"
        }
      ],
      "release_date": "2026-07-07T09:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Set ad_gpo_access_control = disabled in /etc/sssd/sssd.conf to disable GPO fetching entirely. Note that this removes GPO-based login policy enforcement.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "sssd: sssd: GPO cache path traversal via unsanitized gPCFileSysPath allows Kerberos authentication bypass"
    },
    {
      "cve": "CVE-2026-33845",
      "cwe": {
        "id": "CWE-191",
        "name": "Integer Underflow (Wrap or Wraparound)"
      },
      "discovery_date": "2026-03-24T05:35:59.740000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2450624"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may cause information disclosure or denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue marked as Important severity due to its remote, pre-authentication reachability and its impact on a critical DTLS handshake parsing path. The vulnerability can be triggered by an unauthenticated attacker sending crafted DTLS handshake fragments, requiring no prior access or interaction. It leads to an out-of-bounds read caused by an integer underflow in fragment reassembly, operating entirely on attacker-controlled input. Such flaws in low-level protocol parsing are particularly serious, as they may result in disclosure of sensitive process memory, including cryptographic or session-related data, and can also cause reliable application crashes leading to denial of service. Given that DTLS is commonly used in network-facing services such as VPNs and real-time communication systems, the exposure surface is broad. The combination of unauthenticated remote exploitation, memory safety violation, and potential confidentiality and availability impact justifies classifying this issue as high severity rather than moderate.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-33845"
        },
        {
          "category": "external",
          "summary": "RHBZ#2450624",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450624"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-33845",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-33845"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-33845",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33845"
        }
      ],
      "release_date": "2026-04-30T17:28:41.473000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "gnutls: GnuTLS: Denial of Service via DTLS zero-length fragment"
    },
    {
      "cve": "CVE-2026-33846",
      "cwe": {
        "id": "CWE-130",
        "name": "Improper Handling of Length Parameter Inconsistency"
      },
      "discovery_date": "2026-03-24T05:38:09.899000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2450625"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The issue arises in merge_handshake_packet() where incoming handshake fragments are matched and merged based solely on handshake type, without validating that the message_length field remains consistent across all fragments of the same logical message. An attacker can exploit this by sending crafted DTLS fragments with conflicting message_length values, causing the implementation to allocate a buffer based on a smaller initial fragment and subsequently write beyond its bounds using larger, inconsistent fragments. Because the merge operation does not enforce proper bounds checking against the allocated buffer size, this results in an out-of-bounds write on the heap. The vulnerability is remotely exploitable without authentication via the DTLS handshake path and can lead to application crashes or potential memory corruption.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "gnutls: GnuTLS: Denial of Service via heap buffer overflow in DTLS handshake fragment reassembly",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability should be classified as an important flaw rather than moderate because it exposes a pre-authentication, remotely reachable heap buffer overflow in the DTLS handshake processing path, which is part of the core protocol handling logic and commonly exposed in network-facing services. The flaw enables an attacker to inject controlled data at attacker-chosen offsets and sizes beyond allocated heap boundaries by exploiting inconsistent message_length handling across fragments, effectively creating a constrained but meaningful heap write primitive. Unlike benign memory safety bugs, this condition is deterministically triggerable with a small number of crafted packets and no environmental dependencies for denial-of-service, and it targets a long-lived parsing state where memory corruption can affect adjacent heap structures. Even if reliable code execution requires additional heap manipulation or layout knowledge, the combination of remote reachability, lack of authentication, controlled memory corruption capability, and trivial crashability significantly elevates the risk profile beyond moderate severity. In real-world deployments, such primitives are often sufficient to enable heap grooming and exploitation chains, particularly in services that repeatedly process attacker-controlled input, making this a materially important security flaw.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-33846"
        },
        {
          "category": "external",
          "summary": "RHBZ#2450625",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450625"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-33846",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-33846"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-33846",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33846"
        }
      ],
      "release_date": "2026-05-04T08:53:59.249000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "gnutls: GnuTLS: Denial of Service via heap buffer overflow in DTLS handshake fragment reassembly"
    },
    {
      "cve": "CVE-2026-34982",
      "cwe": {
        "id": "CWE-78",
        "name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)"
      },
      "discovery_date": "2026-04-06T16:02:10.004743+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2455400"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Vim. A modeline is used to set specific editor options directly from a text file. However, the `complete`, `guitabtooltip`, `printheader` options and the `mapset` function lack proper security checks, allowing an attacker to bypass restrictions and cause arbitrary OS command execution.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "vim: arbitrary command execution via modeline sandbox bypass",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "To exploit this vulnerability, an attacker needs to convince a user to open a specially crafted file. The arbitrary OS command execution is restricted to the privileges of the user running Vim, limiting the potential of a full system compromise.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-34982"
        },
        {
          "category": "external",
          "summary": "RHBZ#2455400",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455400"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-34982",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-34982"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-34982",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34982"
        },
        {
          "category": "external",
          "summary": "http://www.openwall.com/lists/oss-security/2026/04/01/1",
          "url": "http://www.openwall.com/lists/oss-security/2026/04/01/1"
        },
        {
          "category": "external",
          "summary": "https://github.com/vim/vim/commit/75661a66a1db1e1f3f1245c615",
          "url": "https://github.com/vim/vim/commit/75661a66a1db1e1f3f1245c615"
        },
        {
          "category": "external",
          "summary": "https://github.com/vim/vim/releases/tag/v9.2.0276",
          "url": "https://github.com/vim/vim/releases/tag/v9.2.0276"
        },
        {
          "category": "external",
          "summary": "https://github.com/vim/vim/security/advisories/GHSA-8h6p-m6gr-mpw9",
          "url": "https://github.com/vim/vim/security/advisories/GHSA-8h6p-m6gr-mpw9"
        }
      ],
      "release_date": "2026-04-06T15:16:48.809000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "To mitigate this issue, disable the modeline support by adding the following command to the Vim configuration file:\n\n~~~\nset nomodeline\n~~~",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "vim: arbitrary command execution via modeline sandbox bypass"
    },
    {
      "cve": "CVE-2026-35177",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "discovery_date": "2026-04-06T19:01:00.182513+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2455542"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Vim\u0027s zip.vim plugin. A local user could be tricked into opening a specially crafted zip archive, which would allow a path traversal bypass. This vulnerability enables an attacker to overwrite arbitrary files on the system, potentially leading to data integrity issues or further system compromise.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "vim: zip.vim: Vim zip.vim plugin: Arbitrary file overwrite via path traversal bypass",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "There\u0027s a flaw in `zip.vim` plugin in Vim, allowing a local attacker to overwrite arbitrary files. A user must be tricked into opening a specially crafted zip archive for exploitation, potentially compromising data integrity or the system. When successfully exploited this vulnerability enables the attacker to overwrite arbitrary files or inject code in sensitive system\u0027s location, the impact of the exploitation depends on the privileges which the `vim` process is being executed. Sensitive or privileges files are only susceptible to be overwritten only if the `vim` process is being executed by a high privileged user.\n\nRed Hat Product Security team has rated this vulnerability as having a impact of MODERATE, this decision was made by the fact the user needs to be tricked to open a maliciously crafted file in order to a successful attack to be performed. Additionally the impact will be limited to files which the user running the `vim` process has write permissions.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-35177"
        },
        {
          "category": "external",
          "summary": "RHBZ#2455542",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455542"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-35177",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-35177"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-35177",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35177"
        },
        {
          "category": "external",
          "summary": "https://github.com/vim/vim/security/advisories/GHSA-jc86-w7vm-8p24",
          "url": "https://github.com/vim/vim/security/advisories/GHSA-jc86-w7vm-8p24"
        }
      ],
      "release_date": "2026-04-06T17:54:42.779000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Avoid opening untrusted zip archives with Vim. This operational control prevents the necessary user interaction required to trigger the path traversal vulnerability in the `zip.vim` plugin.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 4.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "vim: zip.vim: Vim zip.vim plugin: Arbitrary file overwrite via path traversal bypass"
    },
    {
      "cve": "CVE-2026-41411",
      "cwe": {
        "id": "CWE-78",
        "name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)"
      },
      "discovery_date": "2026-04-24T18:01:49.275019+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2461614"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Vim, an open-source command-line text editor. This command injection vulnerability occurs during tag file processing. A local user could craft a malicious tags file containing backtick syntax in the filename field. When Vim resolves a tag from this file, it executes the embedded command via the system shell, leading to arbitrary code execution with the privileges of the running user.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "vim: Vim: Command injection allows arbitrary code execution via malicious tag files",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-41411"
        },
        {
          "category": "external",
          "summary": "RHBZ#2461614",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461614"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-41411",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-41411"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-41411",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41411"
        },
        {
          "category": "external",
          "summary": "https://github.com/vim/vim/commit/c78194e41d5a0b05b0ddf383b6679b1503f977fb",
          "url": "https://github.com/vim/vim/commit/c78194e41d5a0b05b0ddf383b6679b1503f977fb"
        },
        {
          "category": "external",
          "summary": "https://github.com/vim/vim/releases/tag/v9.2.0357",
          "url": "https://github.com/vim/vim/releases/tag/v9.2.0357"
        },
        {
          "category": "external",
          "summary": "https://github.com/vim/vim/security/advisories/GHSA-cwgx-gcj7-6qh8",
          "url": "https://github.com/vim/vim/security/advisories/GHSA-cwgx-gcj7-6qh8"
        }
      ],
      "release_date": "2026-04-24T16:51:39.657000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue involves exercising caution when opening or processing tag files from untrusted sources. Users should avoid loading tag files from unknown or suspicious origins to prevent the execution of arbitrary commands.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "vim: Vim: Command injection allows arbitrary code execution via malicious tag files"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Joshua Rogers"
          ],
          "organization": "AISLE Research Team"
        }
      ],
      "cve": "CVE-2026-42009",
      "cwe": {
        "id": "CWE-475",
        "name": "Undefined Behavior for Input to API"
      },
      "discovery_date": "2026-05-06T16:32:32.382000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2467279"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security (DTLS) packet reordering logic. The comparator function, responsible for ordering DTLS packets by sequence numbers, did not correctly handle packets with duplicate sequence numbers. This could lead to unstable packet ordering or undefined behavior, resulting in a denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "gnutls: gnutls: Denial of Service via DTLS packet reordering vulnerability",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The impact for this flaw has been downgraded on Red Hat Enterprise Linux due to the following reason:\n\n- The number of elements passed to the vulnerable function at runtime is known and is at most 6 and the element size is sufficiently small. glibc\u2019s qsort implementation will not exercise the quick sort code path, which would otherwise cause an infloop or out-of-bound write.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-42009"
        },
        {
          "category": "external",
          "summary": "RHBZ#2467279",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467279"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-42009",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-42009"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-42009",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42009"
        },
        {
          "category": "external",
          "summary": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-2",
          "url": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-2"
        }
      ],
      "release_date": "2026-04-29T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "gnutls: gnutls: Denial of Service via DTLS packet reordering vulnerability"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Joshua Rogers"
          ],
          "organization": "AISLE Research Team"
        }
      ],
      "cve": "CVE-2026-42010",
      "cwe": {
        "id": "CWE-170",
        "name": "Improper Null Termination"
      },
      "discovery_date": "2026-05-06T16:57:37.044000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2467289"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest\u2013Shamir\u2013Adleman \u2013 Pre-Shared Key) wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass. This vulnerability allows an attacker to gain unauthorized access by circumventing the authentication process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "gnutls: gnutls: Authentication Bypass via NUL Character in Username",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-42010"
        },
        {
          "category": "external",
          "summary": "RHBZ#2467289",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467289"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-42010",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-42010"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-42010",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42010"
        },
        {
          "category": "external",
          "summary": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-4",
          "url": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-4"
        }
      ],
      "release_date": "2026-04-29T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "gnutls: gnutls: Authentication Bypass via NUL Character in Username"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Haruto Kimura"
          ],
          "organization": "Stella"
        }
      ],
      "cve": "CVE-2026-42011",
      "cwe": {
        "id": "CWE-295",
        "name": "Improper Certificate Validation"
      },
      "discovery_date": "2026-05-06T19:06:25.319000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2467437"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities (CAs) only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate validation. This bypass could lead to the acceptance of invalid certificates, potentially enabling spoofing or man-in-the-middle attacks against affected systems.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "gnutls: gnutls: Security bypass due to incorrect name constraint handling",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-42011"
        },
        {
          "category": "external",
          "summary": "RHBZ#2467437",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467437"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-42011",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-42011"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-42011",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42011"
        },
        {
          "category": "external",
          "summary": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-6",
          "url": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-6"
        }
      ],
      "release_date": "2026-04-29T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "gnutls: gnutls: Security bypass due to incorrect name constraint handling"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Haruto Kimura"
          ],
          "organization": "Stella"
        },
        {
          "names": [
            "Joshua Rogers"
          ],
          "organization": "AISLE Research Team"
        }
      ],
      "cve": "CVE-2026-42013",
      "cwe": {
        "id": "CWE-295",
        "name": "Improper Certificate Validation"
      },
      "discovery_date": "2026-05-06T19:47:00.134000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2467448"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name (SAN) could cause the validation process to incorrectly fall back to checking the Common Name (CN) field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to spoofing or man-in-the-middle attacks.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "gnutls: gnutls: Certificate validation bypass due to oversized Subject Alternative Name",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-42013"
        },
        {
          "category": "external",
          "summary": "RHBZ#2467448",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467448"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-42013",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-42013"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-42013",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42013"
        },
        {
          "category": "external",
          "summary": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-8",
          "url": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-8"
        }
      ],
      "release_date": "2026-04-29T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "gnutls: gnutls: Certificate validation bypass due to oversized Subject Alternative Name"
    },
    {
      "cve": "CVE-2026-46483",
      "cwe": {
        "id": "CWE-78",
        "name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)"
      },
      "discovery_date": "2026-05-15T16:00:58.827425+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2477915"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Vim. When decompressing .tgz archives, the Vimuntar function builds shell commands using shellescape() without the {special} flag. This allows a specially crafted archive filename to trigger Vim cmdline-special expansion and execute arbitrary commands in the context of the current user.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "vim: command injection when decompressing .tgz archives",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "To exploit this issue, an attacker needs to convince a user to decompress a .tgz archive with a specially crafted filename. Additionally, possible arbitrary command execution is restricted to the context of the user running Vim. These conditions limit the exposure of this vulnerability and the potential of a full system compromise. Due to these reasons, this flaw has been rated with a moderate severity.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-46483"
        },
        {
          "category": "external",
          "summary": "RHBZ#2477915",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477915"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-46483",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-46483"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46483",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46483"
        },
        {
          "category": "external",
          "summary": "https://github.com/vim/vim/commit/3fb5e58fbc63d86a3e65f1a141b0d67af2aa38a1",
          "url": "https://github.com/vim/vim/commit/3fb5e58fbc63d86a3e65f1a141b0d67af2aa38a1"
        },
        {
          "category": "external",
          "summary": "https://github.com/vim/vim/releases/tag/v9.2.0479",
          "url": "https://github.com/vim/vim/releases/tag/v9.2.0479"
        },
        {
          "category": "external",
          "summary": "https://github.com/vim/vim/security/advisories/GHSA-2fpv-9ff7-xg5w",
          "url": "https://github.com/vim/vim/security/advisories/GHSA-2fpv-9ff7-xg5w"
        }
      ],
      "release_date": "2026-05-15T14:57:31.872000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "To mitigate this vulnerability, do not decompress untrusted .tgz archives with the Vimuntar command. Use \u0027tar -x -z -f\u0027 directly, instead.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "vim: command injection when decompressing .tgz archives"
    },
    {
      "acknowledgments": [
        {
          "summary": "This issue was discovered by Red Hat."
        }
      ],
      "cve": "CVE-2026-48864",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2026-04-21T23:19:41+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2460425"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This heap buffer overflow in libsolv\u0027s page decompression logic can lead to out-of-bounds reads and writes when processing specially crafted `.solv` files. Exploitation requires a victim application to ingest malicious repository metadata, limiting the attack vector to scenarios involving user interaction or untrusted content sources. Given the user interaction needed, Red Hat Product Security has rated this vulnerability as having a impact of Moderate.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-48864"
        },
        {
          "category": "external",
          "summary": "RHBZ#2460425",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460425"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-48864",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-48864"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-48864",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48864"
        }
      ],
      "release_date": "2026-05-26T16:07:55.363000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data"
    },
    {
      "cve": "CVE-2026-64531",
      "cwe": {
        "id": "CWE-130",
        "name": "Improper Handling of Length Parameter Inconsistency"
      },
      "discovery_date": "2026-07-27T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2507402"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a local privilege escalation (LPE).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: net: openvswitch: reject oversized nested action attrs",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Note that Red Hat Enterprise Linux 9.6 and layered products which include the 9.6 kernel do not contain the commits that introduced this vulnerability.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
          "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-64531"
        },
        {
          "category": "external",
          "summary": "RHBZ#2507402",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507402"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-64531",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-64531"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-64531",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64531"
        },
        {
          "category": "external",
          "summary": "https://lore.kernel.org/linux-cve-announce/2026072732-CVE-2026-64531-e4ce@gregkh/T",
          "url": "https://lore.kernel.org/linux-cve-announce/2026072732-CVE-2026-64531-e4ce@gregkh/T"
        }
      ],
      "release_date": "2026-07-27T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-08-26T15:56:34+00:00",
          "details": "For OpenShift Container Platform 4.18 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is\nsha256:4d4e6147f15c286b33afbd6838ed94683b5f93711a90efe046c58d453318663c\n\n      (For s390x architecture)\n      The image digest is\nsha256:66a3f21ee82c3651eae07ef0cd7dc81859a06b9c48b0e727489a6945a1fca830\n\n      (For ppc64le architecture)\n      The image digest is\nsha256:e6f5a4487f2a5a040ed850a80b6014af330ac162beaada80b2b21a9bd79353ed\n\n      (For aarch64 architecture)\n      The image digest is\nsha256:bac5e091e587bba94d10d0e64d6c664748f2106f020d219b08247065850b4f80\n\nAll OpenShift Container Platform 4.18 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:57483"
        },
        {
          "category": "workaround",
          "details": "Disclaimer: The following mitigation solutions are provided as a courtesy, pending the application of an official patch. This content was generated utilizing AI tools in conjunction with data from cmetaxonomy.org. Customers are advised to independently evaluate and test these temporary mitigations within their own infrastructure.\n\nIf OVS is not required on a given system, unloading the openvswitch module (`modprobe -r openvswitch`) eliminates the attack surface entirely. For systems that require OVS but cannot patch immediately, the single most effective mitigation is disabling unprivileged user namespaces (`sysctluser.max_user_namespaces=0`), which blocks the primary path an unprivileged attacker uses to obtain CAP_NET_ADMIN and reach the vulnerable netlink interface. Standard kernel hardening (KASLR, SMEP, SMAP, kptr_restrict) is enabled by default on supported RHEL kernels and significantly increases exploitation complexity, but these controls are defense-in-depth and not a substitute for patching or removing the vulnerable module.",
          "product_ids": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.18:rhcos-aarch64-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-ppc64le-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-s390x-418.94.202608142238-0",
            "9Base-RHOSE-4.18:rhcos-x86_64-418.94.202608142238-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: net: openvswitch: reject oversized nested action attrs"
    }
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.