Vulnerability-Lookup

RHSA-2026:17084

Vulnerability from csaf_redhat - Published: 2026-05-13 15:39 - Updated: 2026-05-26 09:03

Summary

Red Hat Security Advisory: gvisor-tap-vsock security update

Severity

Important

Notes

Topic: An update for gvisor-tap-vsock is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. 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: A replacement for libslirp and VPNKit, written in pure Go. It is based on the network stack of gVisor. Compared to libslirp, gvisor-tap-vsock brings a configurable DNS server and dynamic port forwarding. Security Fix(es): * crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate (CVE-2025-61729) * golang: net/url: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) * crypto/tls: Unexpected session resumption in crypto/tls (CVE-2025-68121) * net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) * golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root (CVE-2026-32282) * crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) * crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) 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.

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-2025-61726

A flaw was found in the net/url package in the Go standard library. The package does not enforce a limit on the number of unique query parameters it parses. A Go application using the net/http.Request.ParseForm method will try to process all parameters provided in the request. A specially crafted HTTP request containing a massive number of query parameters will cause the application to consume an excessive amount of memory, eventually causing the application to crash or become unresponsive, 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-770 - Allocation of Resources Without Limits or Throttling

Affected products

Fixed 21 products

Product	Version	Remediation
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.src	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

CVE-2025-61729

A flaw was found in golang. A remote attacker could exploit this vulnerability by providing a specially crafted certificate during the error string construction process within the `HostnameError.Error()` function. This flaw, caused by unbounded string concatenation, leads to excessive resource consumption. Successful exploitation can result in a denial of service (DoS) for the affected system.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-1050 - Excessive Platform Resource Consumption within a Loop

Affected products

Fixed 21 products

Product	Version	Remediation
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.src	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix

Threats

Impact Important

CVE-2025-68121

A flaw was found in the crypto/tls component. This vulnerability occurs during Transport Layer Security (TLS) session resumption when certificate authority (CA) settings are modified between the initial and resumed handshakes. An attacker could exploit this to bypass certificate validation, allowing a client or server to establish a connection that should have been rejected. This could lead to an authentication bypass under specific conditions.

7.4 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Fixed 21 products

Product	Version	Remediation
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.src	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix

Threats

Impact Moderate

CVE-2026-25679

The Go standard library function net/url.Parse insufficiently validated the host/authority component and accepted some invalid URLs by effectively treating garbage before an IP-literal as ignorable. The function should have rejected this as invalid.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-1286 - Improper Validation of Syntactic Correctness of Input

Affected products

Fixed 21 products

Product	Version	Remediation
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.src	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

CVE-2026-32280

A flaw was found in the Go standard library packages `crypto/x509` and `crypto/tls`. During the process of building a certificate chain, an attacker can provide a large number of intermediate certificates. This excessive input is not properly limited, leading to an uncontrolled amount of work being performed. This can result in a denial of service (DoS) condition, making the affected system or application unavailable to legitimate users.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-770 - Allocation of Resources Without Limits or Throttling

Affected products

Fixed 21 products

Product	Version	Remediation
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.src	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix

Threats

Impact Important

CVE-2026-32282

A flaw was found in the internal/syscall/unix package in the Go standard library. If the target of the `Root.Chmod` function is replaced with a symbolic link during execution, specifically after `Root.Chmod` checks the target but before acting, the `chmod` operation will be performed on the file the symbolic link points to. This issue can bypass directory restrictions and lead to unauthorized permission changes on the filesystem.

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Affected products

Fixed 21 products

Product	Version	Remediation
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.src	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix Workaround

Threats

Impact Moderate

CVE-2026-32283

A flaw was found in the `crypto/tls` package within the Go (golang) standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock, leading to uncontrolled consumption of resources and ultimately a denial of service (DoS).

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-764 - Multiple Locks of a Critical Resource

Affected products

Fixed 21 products

Product	Version	Remediation
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.src	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.aarch64	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.ppc64le	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.s390x	—	Vendor Fix fix
Unresolved product id: AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.x86_64	—	Vendor Fix fix

Threats

Impact Important

References

64 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:17084	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=2418462	external
https://bugzilla.redhat.com/show_bug.cgi?id=2434432	external
https://bugzilla.redhat.com/show_bug.cgi?id=2437111	external
https://bugzilla.redhat.com/show_bug.cgi?id=2445356	external
https://bugzilla.redhat.com/show_bug.cgi?id=2456336	external
https://bugzilla.redhat.com/show_bug.cgi?id=2456338	external
https://bugzilla.redhat.com/show_bug.cgi?id=2456339	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2025-61726	self
https://bugzilla.redhat.com/show_bug.cgi?id=2434432	external
https://www.cve.org/CVERecord?id=CVE-2025-61726	external
https://nvd.nist.gov/vuln/detail/CVE-2025-61726	external
https://go.dev/cl/736712	external
https://go.dev/issue/77101	external
https://groups.google.com/g/golang-announce/c/Vd2…	external
https://pkg.go.dev/vuln/GO-2026-4341	external
https://access.redhat.com/security/cve/CVE-2025-61729	self
https://bugzilla.redhat.com/show_bug.cgi?id=2418462	external
https://www.cve.org/CVERecord?id=CVE-2025-61729	external
https://nvd.nist.gov/vuln/detail/CVE-2025-61729	external
https://go.dev/cl/725920	external
https://go.dev/issue/76445	external
https://groups.google.com/g/golang-announce/c/8FJ…	external
https://pkg.go.dev/vuln/GO-2025-4155	external
https://access.redhat.com/security/cve/CVE-2025-68121	self
https://bugzilla.redhat.com/show_bug.cgi?id=2437111	external
https://www.cve.org/CVERecord?id=CVE-2025-68121	external
https://nvd.nist.gov/vuln/detail/CVE-2025-68121	external
https://go.dev/cl/737700	external
https://go.dev/issue/77217	external
https://groups.google.com/g/golang-announce/c/K09…	external
https://pkg.go.dev/vuln/GO-2026-4337	external
https://access.redhat.com/security/cve/CVE-2026-25679	self
https://bugzilla.redhat.com/show_bug.cgi?id=2445356	external
https://www.cve.org/CVERecord?id=CVE-2026-25679	external
https://nvd.nist.gov/vuln/detail/CVE-2026-25679	external
https://go.dev/cl/752180	external
https://go.dev/issue/77578	external
https://groups.google.com/g/golang-announce/c/Edh…	external
https://pkg.go.dev/vuln/GO-2026-4601	external
https://access.redhat.com/security/cve/CVE-2026-32280	self
https://bugzilla.redhat.com/show_bug.cgi?id=2456339	external
https://www.cve.org/CVERecord?id=CVE-2026-32280	external
https://nvd.nist.gov/vuln/detail/CVE-2026-32280	external
https://go.dev/cl/758320	external
https://go.dev/issue/78282	external
https://groups.google.com/g/golang-announce/c/0uY…	external
https://pkg.go.dev/vuln/GO-2026-4947	external
https://access.redhat.com/security/cve/CVE-2026-32282	self
https://bugzilla.redhat.com/show_bug.cgi?id=2456336	external
https://www.cve.org/CVERecord?id=CVE-2026-32282	external
https://nvd.nist.gov/vuln/detail/CVE-2026-32282	external
https://go.dev/cl/763761	external
https://go.dev/issue/78293	external
https://pkg.go.dev/vuln/GO-2026-4864	external
https://access.redhat.com/security/cve/CVE-2026-32283	self
https://bugzilla.redhat.com/show_bug.cgi?id=2456338	external
https://www.cve.org/CVERecord?id=CVE-2026-32283	external
https://nvd.nist.gov/vuln/detail/CVE-2026-32283	external
https://go.dev/cl/763767	external
https://go.dev/issue/78334	external
https://pkg.go.dev/vuln/GO-2026-4870	external

JSON

To clipboard

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          "category": "description",
          "text": "A flaw was found in the net/url package in the Go standard library. The package does not enforce a limit on the number of unique query parameters it parses. A Go application using the net/http.Request.ParseForm method will try to process all parameters provided in the request. A specially crafted HTTP request containing a massive number of query parameters will cause the application to consume an excessive amount of memory, eventually causing the application to crash or become unresponsive, resulting in a denial of service.",
          "title": "Vulnerability description"
        },
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          "text": "golang: net/url: Memory exhaustion in query parameter parsing in net/url",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "To exploit this flaw, an attacker must be able to send a specially crafted HTTP request to an application parsing URL-encoded forms with net/url, specifically a request containing a large number of unique query parameters. The request will cause the application to consume an excessive amount of memory and eventually result in a denial of service, with no impact to confidentiality or integrity. Due to this reason, this vulnerability has been rated with an important 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"
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            "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"
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          "details": "Important"
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      "title": "golang: net/url: Memory exhaustion in query parameter parsing in net/url"
    },
    {
      "cve": "CVE-2025-61729",
      "cwe": {
        "id": "CWE-1050",
        "name": "Excessive Platform Resource Consumption within a Loop"
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      "ids": [
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          "text": "2418462"
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        {
          "category": "description",
          "text": "A flaw was found in golang. A remote attacker could exploit this vulnerability by providing a specially crafted certificate during the error string construction process within the `HostnameError.Error()` function. This flaw, caused by unbounded string concatenation, leads to excessive resource consumption. Successful exploitation can result in a denial of service (DoS) for the affected system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate",
          "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"
        }
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          "title": "Vulnerability summary"
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          "title": "Statement"
        },
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          "category": "general",
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25679"
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      "title": "net/url: Incorrect parsing of IPv6 host literals in net/url"
    },
    {
      "cve": "CVE-2026-32280",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
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          "text": "A flaw was found in the Go standard library packages `crypto/x509` and `crypto/tls`. During the process of building a certificate chain, an attacker can provide a large number of intermediate certificates. This excessive input is not properly limited, leading to an uncontrolled amount of work being performed. This can result in a denial of service (DoS) condition, making the affected system or application unavailable to legitimate users.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building",
          "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"
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      "title": "crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building"
    },
    {
      "cve": "CVE-2026-32282",
      "cwe": {
        "id": "CWE-367",
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          "title": "Vulnerability description"
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          "title": "Vulnerability summary"
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          "text": "To exploit this issue, an attacker needs access to the system and the required permissions to create a symbolic link. Additionally, the attacker must swap the target file with a symbolic link in the exact window after the `Root.Chmod` function checks its target but before acting. Due to these conditions, 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.",
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            "scope": "CHANGED",
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          "title": "Vulnerability summary"
        },
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-32283",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32283"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/763767",
          "url": "https://go.dev/cl/763767"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/78334",
          "url": "https://go.dev/issue/78334"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU",
          "url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-4870",
          "url": "https://pkg.go.dev/vuln/GO-2026-4870"
        }
      ],
      "release_date": "2026-04-08T01:06:57.670000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-05-13T15:39:24+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "AppStream-10.0.Z.E2S:gvisor-tap-vsock-6:0.8.5-2.el10_0.1.src",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:17084"
        }
      ],
      "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"
          },
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            "AppStream-10.0.Z.E2S:gvisor-tap-vsock-debugsource-6:0.8.5-2.el10_0.1.ppc64le",
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            "AppStream-10.0.Z.E2S:gvisor-tap-vsock-gvforwarder-debuginfo-6:0.8.5-2.el10_0.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages"
    }
  ]
}

CVE-2025-61726 (GCVE-0-2025-61726)

Vulnerability from cvelistv5 – Published: 2026-01-28 19:30 – Updated: 2026-01-29 18:31

Title

Memory exhaustion in query parameter parsing in net/url

Summary

The net/url package does not set a limit on the number of query parameters in a query. While the maximum size of query parameters in URLs is generally limited by the maximum request header size, the net/http.Request.ParseForm method can parse large URL-encoded forms. Parsing a large form containing many unique query parameters can cause excessive memory consumption.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

References

4 references

URL	Tags
https://go.dev/cl/736712
https://go.dev/issue/77101
https://groups.google.com/g/golang-announce/c/Vd2…
https://pkg.go.dev/vuln/GO-2026-4341

Impacted products

1 product

Vendor	Product	Version
Go standard library	net/url	Affected: 0 , < 1.24.12 (semver) Affected: 1.25.0 , < 1.25.6 (semver)

Credits

jub0bs

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
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            }
          },
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              "content": {
                "id": "CVE-2025-61726",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "yes"
                  },
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                    "Technical Impact": "partial"
                  }
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          }
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          "dateUpdated": "2026-01-29T18:31:59.685Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "net/url",
          "product": "net/url",
          "programRoutines": [
            {
              "name": "parseQuery"
            },
            {
              "name": "ParseQuery"
            },
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              "name": "URL.Query"
            }
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          "vendor": "Go standard library",
          "versions": [
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              "lessThan": "1.24.12",
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              "description": "CWE-400: Uncontrolled Resource Consumption",
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        "dateUpdated": "2026-01-28T19:30:31.215Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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      },
      "references": [
        {
          "url": "https://go.dev/cl/736712"
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        {
          "url": "https://go.dev/issue/77101"
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        {
          "url": "https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4341"
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      ],
      "title": "Memory exhaustion in query parameter parsing in net/url"
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  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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CVE-2025-61729 (GCVE-0-2025-61729)

Vulnerability from cvelistv5 – Published: 2025-12-02 18:54 – Updated: 2025-12-03 19:37

Title

Excessive resource consumption when printing error string for host certificate validation in crypto/x509

Summary

Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out. Furthermore, the error string is constructed by repeated string concatenation, leading to quadratic runtime. Therefore, a certificate provided by a malicious actor can result in excessive resource consumption.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

References

4 references

URL	Tags
https://go.dev/cl/725920
https://go.dev/issue/76445
https://groups.google.com/g/golang-announce/c/8FJ…
https://pkg.go.dev/vuln/GO-2025-4155

Impacted products

1 product

Vendor	Product	Version
Go standard library	crypto/x509	Affected: 0 , < 1.24.11 (semver) Affected: 1.25.0 , < 1.25.5 (semver)

Credits

Philippe Antoine (Catena cyber)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
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                "id": "CVE-2025-61729",
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                    "Exploitation": "none"
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                    "Technical Impact": "partial"
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          "dateUpdated": "2025-12-02T21:52:58.224Z",
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          "defaultStatus": "unaffected",
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            {
              "name": "Certificate.VerifyHostname"
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              "name": "Certificate.Verify"
            }
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          "url": "https://pkg.go.dev/vuln/GO-2025-4155"
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CVE-2025-68121 (GCVE-0-2025-68121)

Vulnerability from cvelistv5 – Published: 2026-02-05 17:48 – Updated: 2026-04-29 13:29

Title

Unexpected session resumption in crypto/tls

Summary

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a session with a client that it would not have resumed with during the initial handshake.

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE

CWE-295 - Improper Certificate Validation

Assigner

References

4 references

URL	Tags
https://groups.google.com/g/golang-announce/c/K09…
https://go.dev/cl/737700
https://go.dev/issue/77217
https://pkg.go.dev/vuln/GO-2026-4337

Impacted products

1 product

Vendor	Product	Version
Go standard library	crypto/tls	Affected: 0 , < 1.24.13 (semver) Affected: 1.25.0-0 , < 1.25.7 (semver) Affected: 1.26.0-rc.1 , < 1.26.0-rc.3 (semver)

Credits

Coia Prant (github.com/rbqvq) Go Security Team

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "metrics": [
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              "attackComplexity": "LOW",
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              "name": "Conn.HandshakeContext"
            },
            {
              "name": "Conn.Read"
            },
            {
              "name": "Conn.Write"
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          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Coia Prant (github.com/rbqvq)"
        },
        {
          "lang": "en",
          "value": "Go Security Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a session with a client that it would not have resumed with during the initial handshake."
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "description": "CWE-295: Improper Certificate Validation",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-05T17:48:44.141Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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      },
      "references": [
        {
          "url": "https://groups.google.com/g/golang-announce/c/K09ubi9FQFk"
        },
        {
          "url": "https://go.dev/cl/737700"
        },
        {
          "url": "https://go.dev/issue/77217"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4337"
        }
      ],
      "title": "Unexpected session resumption in crypto/tls"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2025-68121",
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    "dateReserved": "2025-12-15T16:48:04.451Z",
    "dateUpdated": "2026-04-29T13:29:25.582Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

CVE-2026-25679 (GCVE-0-2026-25679)

Vulnerability from cvelistv5 – Published: 2026-03-06 21:28 – Updated: 2026-03-10 13:37

Title

Incorrect parsing of IPv6 host literals in net/url

Summary

url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1286 - Improper Validation of Syntactic Correctness of Input

Assigner

References

4 references

URL	Tags
https://go.dev/cl/752180
https://go.dev/issue/77578
https://groups.google.com/g/golang-announce/c/Edh…
https://pkg.go.dev/vuln/GO-2026-4601

Impacted products

1 product

Vendor	Product	Version
Go standard library	net/url	Affected: 0 , < 1.25.8 (semver) Affected: 1.26.0-0 , < 1.26.1 (semver)

Credits

Masaki Hara (https://github.com/qnighy) of Wantedly

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
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              "name": "parseHost"
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              "name": "JoinPath"
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CVE-2026-32280 (GCVE-0-2026-32280)

Vulnerability from cvelistv5 – Published: 2026-04-08 01:06 – Updated: 2026-04-08 17:46

Title

Unexpected work during chain building in crypto/x509

Summary

During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

References

4 references

URL	Tags
https://go.dev/cl/758320
https://go.dev/issue/78282
https://groups.google.com/g/golang-announce/c/0uY…
https://pkg.go.dev/vuln/GO-2026-4947

Impacted products

1 product

Vendor	Product	Version
Go standard library	crypto/x509	Affected: 0 , < 1.25.9 (semver) Affected: 1.26.0-0 , < 1.26.2 (semver)

Credits

Jakub Ciolek - https://ciolek.dev

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
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          }
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        "title": "CISA ADP Vulnrichment"
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              "name": "Certificate.buildChains"
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              "name": "Certificate.Verify"
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      ],
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          "lang": "en",
          "value": "Jakub Ciolek - https://ciolek.dev"
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        "dateUpdated": "2026-04-08T01:06:58.595Z",
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          "url": "https://pkg.go.dev/vuln/GO-2026-4947"
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CVE-2026-32282 (GCVE-0-2026-32282)

Vulnerability from cvelistv5 – Published: 2026-04-08 01:06 – Updated: 2026-04-13 18:20

Title

TOCTOU permits root escape on Linux via Root.Chmod in os in internal/syscall/unix

Summary

On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the symlink, even when the target lies outside the root. The Linux fchmodat syscall silently ignores the AT_SYMLINK_NOFOLLOW flag, which Root.Chmod uses to avoid symlink traversal. Root.Chmod checks its target before acting and returns an error if the target is a symlink lying outside the root, so the impact is limited to cases where the target is replaced with a symlink between the check and operation.

Severity

6.4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-61 - UNIX Symbolic Link (Symlink) Following

Assigner

References

4 references

URL	Tags
https://go.dev/cl/763761
https://go.dev/issue/78293
https://groups.google.com/g/golang-announce/c/0uY…
https://pkg.go.dev/vuln/GO-2026-4864

Impacted products

1 product

Vendor	Product	Version
Go standard library	internal/syscall/unix	Affected: 0 , < 1.25.9 (semver) Affected: 1.26.0-0 , < 1.26.2 (semver)

Credits

Uuganbayar Lkhamsuren (https://github.com/uug4na)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
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        "dateUpdated": "2026-04-08T01:06:55.953Z",
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          "url": "https://pkg.go.dev/vuln/GO-2026-4864"
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CVE-2026-32283 (GCVE-0-2026-32283)

Vulnerability from cvelistv5 – Published: 2026-04-08 01:06 – Updated: 2026-04-13 18:19

Title

Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls

Summary

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-667 - Improper Locking

Assigner

References

4 references

URL	Tags
https://go.dev/cl/763767
https://go.dev/issue/78334
https://groups.google.com/g/golang-announce/c/0uY…
https://pkg.go.dev/vuln/GO-2026-4870

Impacted products

1 product

Vendor	Product	Version
Go standard library	crypto/tls	Affected: 0 , < 1.25.9 (semver) Affected: 1.26.0-0 , < 1.26.2 (semver)

Credits

Jakub Ciolek - https://ciolek.dev/

Show details on NVD website

JSON

To clipboard

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              "name": "Conn.handleKeyUpdate"
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              "name": "clientHandshakeStateTLS13.establishHandshakeKeys"
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              "name": "Conn.HandshakeContext"
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              "name": "Conn.Read"
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              "name": "Conn.Write"
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              "name": "Dial"
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              "name": "DialWithDialer"
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            {
              "description": "CWE-667: Improper Locking",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-08T01:06:57.670Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/cl/763767"
        },
        {
          "url": "https://go.dev/issue/78334"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4870"
        }
      ],
      "title": "Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-32283",
    "datePublished": "2026-04-08T01:06:57.670Z",
    "dateReserved": "2026-03-11T16:38:46.556Z",
    "dateUpdated": "2026-04-13T18:19:55.848Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

RHSA-2026:17084

CVE-2025-61726 (GCVE-0-2025-61726)

CVE-2025-61729 (GCVE-0-2025-61729)

CVE-2025-68121 (GCVE-0-2025-68121)

CVE-2026-25679 (GCVE-0-2026-25679)

CVE-2026-32280 (GCVE-0-2026-32280)

CVE-2026-32282 (GCVE-0-2026-32282)

CVE-2026-32283 (GCVE-0-2026-32283)

Tags

Sightings

Nomenclature