Vulnerability-Lookup

OESA-2026-4712 (CVE-2026-104029)

Vulnerability from osv_openeuler – Published: 2026-11-04 13:54 – Updated: 2026-11-04 13:54 – Source website

Summary

sssd security update

Details

Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy services for projects like FreeIPA.

Security Fix(es):

A flaw was found in SSSD. A local attacker can exploit this vulnerability by sending a specially crafted request to the autofs responder UNIX socket. Due to improper buffer offset calculation during request parsing, the service performs an out-of-bounds memory read. This flaw can cause the autofs responder process to crash, resulting in a denial of service (DoS).(CVE-2026-104029)

A flaw was found in sssd. This vulnerability allows a local user to cause a Denial of Service (DoS) by submitting a specially crafted passkey authentication token that lacks null terminators. The authentication service reads past the end of the provided memory buffer, causing the process to crash and disrupting authentication services.(CVE-2026-104030)

A flaw was found in SSSD. In configurations where the autofs responder service is enabled, memory allocated during successful request processing is not released until the client connection terminates. A local attacker can exploit this vulnerability by maintaining an open connection and repeatedly submitting valid requests, leading to memory exhaustion and a Denial of Service (DoS).(CVE-2026-104031)

A flaw was found in SSSD. An unprivileged local user can repeatedly request master automount map updates through the autofs responder due to missing authorization checks. This triggers global cache invalidation and forces repeated lookups to backend directory providers, leading to a Denial of Service (DoS) from degraded automount availability and elevated resource consumption.(CVE-2026-104032)

A flaw was found in SSSD. When configured to enforce account expiration using LDAP (Lightweight Directory Access Protocol) shadow attributes, SSSD fails to treat an expiration value of zero as an expired account. A user with valid credentials for an expired account can exploit this flaw to bypass access controls and authenticate to the system. This allows unauthorized access to persist after the account was intended to be deactivated.(CVE-2026-104033)

A flaw was found in SSSD. A use-after-free vulnerability exists in the Kerberos Credential Manager (KCM) responder during Kerberos ticket-granting ticket (TGT) renewal, where a deferred callback accesses memory that has already been released. An authenticated local user with a renewable Kerberos ticket can trigger this issue on systems configured with KCM renewal, causing the KCM responder service to crash and resulting in a Denial of Service (DoS).(CVE-2026-104034)

A flaw was found in SSSD. An issue in the Kerberos Credential Manager (KCM) responder allows a local user to cause a Denial of Service (DoS) by maintaining a persistent connection and repeatedly storing and destroying credentials. Because the service fails to release cached objects from memory when credentials are removed, memory consumption grows continuously, ultimately exhausting available memory and rendering the service unresponsive.(CVE-2026-104035)

A flaw was found in SSSD. A local attacker can exploit this issue by sending a specially crafted request with an invalid packet length to the autofs responder UNIX socket. This causes an integer underflow and an out-of-bounds memory read, which can crash the responder process and result in a denial of service (DoS).(CVE-2026-104037)

A flaw was found in SSSD. A local user can cause a denial of service (DoS) by disrupting system authentication services. When handling Generic Security Services Application Programming Interface (GSSAPI) authentication in the Pluggable Authentication Module (PAM) responder, cached connection state is freed upon completion without clearing the reference pointer. An attacker can exploit this by sending an additional request over the same connection, causing the service to access invalid memory and unexpectedly terminate.(CVE-2026-104039)

A flaw was found in sssd. A local attacker can cause a Denial of Service (DoS) by sending a crafted Pluggable Authentication Module (PAM) request containing a zero-length authentication token to the responder socket. Due to missing input validation, the service attempts to read beyond buffer boundaries when processing the token, causing the PAM responder to crash.(CVE-2026-104042)

A flaw was found in SSSD. A local attacker with access to the Name Service Switch (NSS) responder UNIX socket can trigger an integer underflow by sending a specially crafted request with an undersized packet header. This issue causes an out-of-bounds memory read during packet parsing, crashing the responder process and resulting in a Denial of Service (DoS).(CVE-2026-104043)

A flaw was found in sssd. A local attacker can trigger a Denial of Service (DoS) by sending a specially crafted Pluggable Authentication Module (PAM) request when passkey authentication is enabled. Due to a missing state validation check in passkey Kerberos handling, the PAM responder dereferences an uninitialized pointer and crashes. This failure disrupts authentication services on the host.(CVE-2026-104044)

A flaw was found in SSSD. A local user can trigger a Denial of Service (DoS) by exploiting a race condition in the autofs responder between asynchronous enumeration completion and map invalidation. By repeatedly sending concurrent map enumeration and invalidation requests, an attacker can cause memory to leak, leading to excessive memory consumption that can disrupt or crash the autofs service.(CVE-2026-104045)

A flaw was found in SSSD. In trust-enabled identity management environments, SSSD evaluates Host-Based Access Control (HBAC) rules by stripping domain qualifiers and comparing only short usernames. An authenticated user in a trusted domain who shares the same username as an authorized local account can bypass access policies and gain unauthorized access to protected services or hosts.(CVE-2026-104048)

A flaw was found in sssd. A local user can cause a Denial of Service (DoS) by exhausting the responder service's available file descriptors (system handles used for open connections). By opening and maintaining many concurrent connections to a responder socket while continuing to queue new connection attempts, an attacker can trigger an unthrottled retry loop. This condition leads to high CPU utilization and stalls the service, preventing legitimate identity and authentication requests from being processed.(CVE-2026-88252)

A flaw was found in SSSD. When configured to evaluate password expiration warnings before restrictive access rules in LDAP (Lightweight Directory Access Protocol) environments, an expired-password warning terminates rule evaluation early and treats the access request as successful. A remote authenticated user with an expired password using an alternative authentication method, such as SSH public key authentication, can exploit this flaw to bypass access control restrictions and gain unauthorized access to protected systems.(CVE-2026-92821)

Severity

8.1 (High)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104029	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104030	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104031	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104032	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104033	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104034	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104035	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104037	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104039	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104042	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104043	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104044	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104045	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104048	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-88252	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-92821	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "libipa_hbac-2.9.4-34.oe2403sp3.aarch64.rpm",
          "libipa_hbac-devel-2.9.4-34.oe2403sp3.aarch64.rpm",
          "libsss_autofs-2.9.4-34.oe2403sp3.aarch64.rpm",
          "libsss_certmap-2.9.4-34.oe2403sp3.aarch64.rpm",
          "libsss_certmap-devel-2.9.4-34.oe2403sp3.aarch64.rpm",
          "libsss_idmap-2.9.4-34.oe2403sp3.aarch64.rpm",
          "libsss_idmap-devel-2.9.4-34.oe2403sp3.aarch64.rpm",
          "libsss_nss_idmap-2.9.4-34.oe2403sp3.aarch64.rpm",
          "libsss_nss_idmap-devel-2.9.4-34.oe2403sp3.aarch64.rpm",
          "libsss_sudo-2.9.4-34.oe2403sp3.aarch64.rpm",
          "python3-libipa_hbac-2.9.4-34.oe2403sp3.aarch64.rpm",
          "python3-libsss_nss_idmap-2.9.4-34.oe2403sp3.aarch64.rpm",
          "python3-sss-2.9.4-34.oe2403sp3.aarch64.rpm",
          "python3-sss-murmur-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-ad-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-client-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-common-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-common-pac-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-dbus-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-debuginfo-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-debugsource-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-idp-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-ipa-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-kcm-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-krb5-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-krb5-common-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-ldap-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-nfs-idmap-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-proxy-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-tools-2.9.4-34.oe2403sp3.aarch64.rpm",
          "sssd-winbind-idmap-2.9.4-34.oe2403sp3.aarch64.rpm"
        ],
        "noarch": [
          "python3-sssdconfig-2.9.4-34.oe2403sp3.noarch.rpm",
          "sssd-help-2.9.4-34.oe2403sp3.noarch.rpm"
        ],
        "src": [
          "sssd-2.9.4-34.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "libipa_hbac-2.9.4-34.oe2403sp3.x86_64.rpm",
          "libipa_hbac-devel-2.9.4-34.oe2403sp3.x86_64.rpm",
          "libsss_autofs-2.9.4-34.oe2403sp3.x86_64.rpm",
          "libsss_certmap-2.9.4-34.oe2403sp3.x86_64.rpm",
          "libsss_certmap-devel-2.9.4-34.oe2403sp3.x86_64.rpm",
          "libsss_idmap-2.9.4-34.oe2403sp3.x86_64.rpm",
          "libsss_idmap-devel-2.9.4-34.oe2403sp3.x86_64.rpm",
          "libsss_nss_idmap-2.9.4-34.oe2403sp3.x86_64.rpm",
          "libsss_nss_idmap-devel-2.9.4-34.oe2403sp3.x86_64.rpm",
          "libsss_sudo-2.9.4-34.oe2403sp3.x86_64.rpm",
          "python3-libipa_hbac-2.9.4-34.oe2403sp3.x86_64.rpm",
          "python3-libsss_nss_idmap-2.9.4-34.oe2403sp3.x86_64.rpm",
          "python3-sss-2.9.4-34.oe2403sp3.x86_64.rpm",
          "python3-sss-murmur-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-ad-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-client-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-common-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-common-pac-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-dbus-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-debuginfo-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-debugsource-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-idp-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-ipa-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-kcm-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-krb5-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-krb5-common-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-ldap-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-nfs-idmap-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-proxy-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-tools-2.9.4-34.oe2403sp3.x86_64.rpm",
          "sssd-winbind-idmap-2.9.4-34.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "sssd",
        "purl": "pkg:rpm/openEuler/sssd\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.4-34.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy services for projects like FreeIPA.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in SSSD. A local attacker can exploit this vulnerability by sending a specially crafted request to the autofs responder UNIX socket. Due to improper buffer offset calculation during request parsing, the service performs an out-of-bounds memory read. This flaw can cause the autofs responder process to crash, resulting in a denial of service (DoS).(CVE-2026-104029)\n\nA flaw was found in sssd. This vulnerability allows a local user to cause a Denial of Service (DoS) by submitting a specially crafted passkey authentication token that lacks null terminators. The authentication service reads past the end of the provided memory buffer, causing the process to crash and disrupting authentication services.(CVE-2026-104030)\n\nA flaw was found in SSSD. In configurations where the autofs responder service is enabled, memory allocated during successful request processing is not released until the client connection terminates. A local attacker can exploit this vulnerability by maintaining an open connection and repeatedly submitting valid requests, leading to memory exhaustion and a Denial of Service (DoS).(CVE-2026-104031)\n\nA flaw was found in SSSD. An unprivileged local user can repeatedly request master automount map updates through the autofs responder due to missing authorization checks. This triggers global cache invalidation and forces repeated lookups to backend directory providers, leading to a Denial of Service (DoS) from degraded automount availability and elevated resource consumption.(CVE-2026-104032)\n\nA flaw was found in SSSD. When configured to enforce account expiration using LDAP (Lightweight Directory Access Protocol) shadow attributes, SSSD fails to treat an expiration value of zero as an expired account. A user with valid credentials for an expired account can exploit this flaw to bypass access controls and authenticate to the system. This allows unauthorized access to persist after the account was intended to be deactivated.(CVE-2026-104033)\n\nA flaw was found in SSSD. A use-after-free vulnerability exists in the Kerberos Credential Manager (KCM) responder during Kerberos ticket-granting ticket (TGT) renewal, where a deferred callback accesses memory that has already been released. An authenticated local user with a renewable Kerberos ticket can trigger this issue on systems configured with KCM renewal, causing the KCM responder service to crash and resulting in a Denial of Service (DoS).(CVE-2026-104034)\n\nA flaw was found in SSSD. An issue in the Kerberos Credential Manager (KCM) responder allows a local user to cause a Denial of Service (DoS) by maintaining a persistent connection and repeatedly storing and destroying credentials. Because the service fails to release cached objects from memory when credentials are removed, memory consumption grows continuously, ultimately exhausting available memory and rendering the service unresponsive.(CVE-2026-104035)\n\nA flaw was found in SSSD. A local attacker can exploit this issue by sending a specially crafted request with an invalid packet length to the autofs responder UNIX socket. This causes an integer underflow and an out-of-bounds memory read, which can crash the responder process and result in a denial of service (DoS).(CVE-2026-104037)\n\nA flaw was found in SSSD. A local user can cause a denial of service (DoS) by disrupting system authentication services. When handling Generic Security Services Application Programming Interface (GSSAPI) authentication in the Pluggable Authentication Module (PAM) responder, cached connection state is freed upon completion without clearing the reference pointer. An attacker can exploit this by sending an additional request over the same connection, causing the service to access invalid memory and unexpectedly terminate.(CVE-2026-104039)\n\nA flaw was found in sssd. A local attacker can cause a Denial of Service (DoS) by sending a crafted Pluggable Authentication Module (PAM) request containing a zero-length authentication token to the responder socket. Due to missing input validation, the service attempts to read beyond buffer boundaries when processing the token, causing the PAM responder to crash.(CVE-2026-104042)\n\nA flaw was found in SSSD. A local attacker with access to the Name Service Switch (NSS) responder UNIX socket can trigger an integer underflow by sending a specially crafted request with an undersized packet header. This issue causes an out-of-bounds memory read during packet parsing, crashing the responder process and resulting in a Denial of Service (DoS).(CVE-2026-104043)\n\nA flaw was found in sssd. A local attacker can trigger a Denial of Service (DoS) by sending a specially crafted Pluggable Authentication Module (PAM) request when passkey authentication is enabled. Due to a missing state validation check in passkey Kerberos handling, the PAM responder dereferences an uninitialized pointer and crashes. This failure disrupts authentication services on the host.(CVE-2026-104044)\n\nA flaw was found in SSSD. A local user can trigger a Denial of Service (DoS) by exploiting a race condition in the autofs responder between asynchronous enumeration completion and map invalidation. By repeatedly sending concurrent map enumeration and invalidation requests, an attacker can cause memory to leak, leading to excessive memory consumption that can disrupt or crash the autofs service.(CVE-2026-104045)\n\nA flaw was found in SSSD. In trust-enabled identity management environments, SSSD evaluates Host-Based Access Control (HBAC) rules by stripping domain qualifiers and comparing only short usernames. An authenticated user in a trusted domain who shares the same username as an authorized local account can bypass access policies and gain unauthorized access to protected services or hosts.(CVE-2026-104048)\n\nA flaw was found in sssd. A local user can cause a Denial of Service (DoS) by exhausting the responder service\u0026apos;s available file descriptors (system handles used for open connections). By opening and maintaining many concurrent connections to a responder socket while continuing to queue new connection attempts, an attacker can trigger an unthrottled retry loop. This condition leads to high CPU utilization and stalls the service, preventing legitimate identity and authentication requests from being processed.(CVE-2026-88252)\n\nA flaw was found in SSSD. When configured to evaluate password expiration warnings before restrictive access rules in LDAP (Lightweight Directory Access Protocol) environments, an expired-password warning terminates rule evaluation early and treats the access request as successful. A remote authenticated user with an expired password using an alternative authentication method, such as SSH public key authentication, can exploit this flaw to bypass access control restrictions and gain unauthorized access to protected systems.(CVE-2026-92821)",
  "id": "OESA-2026-4712",
  "modified": "2026-11-04T13:54:47Z",
  "published": "2026-11-04T13:54:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4712"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104029"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104030"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104031"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104032"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104033"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104034"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104035"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104037"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104039"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104042"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104043"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104044"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104045"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104048"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88252"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92821"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "sssd security update",
  "upstream": [
    "CVE-2026-104029",
    "CVE-2026-104030",
    "CVE-2026-104031",
    "CVE-2026-104032",
    "CVE-2026-104033",
    "CVE-2026-104034",
    "CVE-2026-104035",
    "CVE-2026-104037",
    "CVE-2026-104039",
    "CVE-2026-104042",
    "CVE-2026-104043",
    "CVE-2026-104044",
    "CVE-2026-104045",
    "CVE-2026-104048",
    "CVE-2026-88252",
    "CVE-2026-92821"
  ]
}

CVE-2026-104043 (GCVE-0-2026-104043)

Vulnerability from cvelistv5 – Published: 2026-10-06 01:02 – Updated: 2026-10-06 14:47

Title

Sssd: sssd: denial of service via undersized packet parsing in nss responder

Summary

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 14:42 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1088 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-104043	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2478852	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-10-06 00:49

Credits

This issue was discovered by Found by AISLE in partnership with Red Hat.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
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CVE-2026-104044 (GCVE-0-2026-104044)

Vulnerability from cvelistv5 – Published: 2026-10-06 01:02 – Updated: 2026-10-08 02:40

Title

Sssd: sssd: denial of service via crafted passkey kerberos authentication request

Summary

Severity

6.2 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-08 02:40 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1088 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-104044	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2478664	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-10-06 00:49

Credits

This issue was discovered by Found by AISLE in partnership with Red Hat.

Show details on NVD website

JSON

To clipboard

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CVE-2026-104045 (GCVE-0-2026-104045)

Vulnerability from cvelistv5 – Published: 2026-10-06 20:37 – Updated: 2026-10-16 10:57

Title

Sssd: sssd: denial of service via race condition in autofs responder

Summary

Severity

4.7 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-07 15:22 UTC

CWE

CWE-772 - Missing Release of Resource after Effective Lifetime

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1088 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-104045	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2478663	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-10-06 18:38

Credits

This issue was discovered by Found by AISLE in partnership with Red Hat.

Show details on NVD website

JSON

To clipboard

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          "value": "A real workaround exists: disable the SSSD autofs responder on systems where automount map integration via SSSD is not required.\n\n1. Stop and mask the SSSD autofs socket and service:\n# systemctl stop sssd-autofs.socket sssd-autofs.service\n# systemctl mask sssd-autofs.socket sssd-autofs.service\n\n2. If the \u0027services\u0027 line in /etc/sssd/sssd.conf explicitly lists \u0027autofs\u0027, remove \u0027autofs\u0027 from the comma-separated list and restart SSSD:\n# systemctl restart sssd\n\nCaveats: disabling the autofs responder prevents SSSD from serving automount maps, which will disrupt automated mounting of shares or user directories managed via SSSD. Restarting the SSSD service will briefly interrupt active authentication and directory lookup operations on the system.\n\nWhere the autofs responder must remain enabled, restricting local access to the responder to trusted users, where deployment policy permits, and avoiding repeated map invalidation and enumeration cycles against large maps can reduce exposure. No released package fix is currently established for this issue."
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CVE-2026-104048 (GCVE-0-2026-104048)

Vulnerability from cvelistv5 – Published: 2026-10-06 19:34 – Updated: 2026-10-07 14:34

Title

Sssd: sssd: authorization bypass via cross-domain username collision in hbac evaluation

Summary

Severity

6.8 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-07 14:32 UTC

CWE

CWE-1025 - Comparison Using Wrong Factors

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1088 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-104048	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2478613	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-10-06 15:32

Credits

This issue was discovered by Found by AISLE in partnership with Red Hat.

Show details on NVD website

JSON

To clipboard

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CVE-2026-88252 (GCVE-0-2026-88252)

Vulnerability from cvelistv5 – Published: 2026-10-06 17:50 – Updated: 2026-10-06 18:21

Title

Sssd: sssd: denial of service via responder connection retry loop during file descriptor exhaustion

Summary

Severity

4.7 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 18:20 UTC

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1088 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-88252	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2479240	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-10-06 16:40

Show details on NVD website

JSON

To clipboard

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CVE-2026-92821 (GCVE-0-2026-92821)

Vulnerability from cvelistv5 – Published: 2026-10-06 00:12 – Updated: 2026-10-16 12:19

Title

Sssd: sssd: access control bypass via premature ldap access rule evaluation

Summary

Severity

6.8 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 14:42 UTC

CWE

CWE-393 - Return of Wrong Status Code

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1088 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-92821	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2479031	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-10-05 23:50

Credits

This issue was discovered by Found by AISLE in partnership with Red Hat.

Show details on NVD website

JSON

To clipboard

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        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift:4"
          ],
          "defaultStatus": "affected",
          "packageName": "openshift/ose-rhel-coreos-9",
          "product": "Red Hat OpenShift Container Platform 4",
          "vendor": "Red Hat"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "This issue was discovered by Found by AISLE in partnership with Red Hat."
        }
      ],
      "datePublic": "2026-10-05T23:50:06.924Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in SSSD. When configured to evaluate password expiration warnings before restrictive access rules in LDAP (Lightweight Directory Access Protocol) environments, an expired-password warning terminates rule evaluation early and treats the access request as successful. A remote authenticated user with an expired password using an alternative authentication method, such as SSH public key authentication, can exploit this flaw to bypass access control restrictions and gain unauthorized access to protected systems."
        }
      ],
      "metrics": [
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          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
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        },
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
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          "descriptions": [
            {
              "cweId": "CWE-393",
              "description": "Return of Wrong Status Code",
              "lang": "en",
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          "url": "https://access.redhat.com/security/cve/CVE-2026-92821"
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          "time": "2026-05-18T03:32:25.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-10-05T23:50:06.924Z",
          "value": "Made public."
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      ],
      "title": "Sssd: sssd: access control bypass via premature ldap access rule evaluation",
      "workarounds": [
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          "lang": "en",
          "value": "The exposure can be removed by reordering the SSSD LDAP access rules without waiting for a package update. In the affected domain section of /etc/sssd/sssd.conf, set ldap_access_order so that restrictive rules such as filter, host, and rhost are evaluated before pwd_expire_policy_warn (for example, change `ldap_access_order = pwd_expire_policy_warn, filter, host` to `ldap_access_order = filter, host, pwd_expire_policy_warn`). Alternatively, replace pwd_expire_policy_warn with pwd_expire_policy_reject where accounts with expired passwords should not continue through the access chain. Restart the SSSD service (systemctl restart sssd) to apply the change. Note that restarting SSSD briefly interrupts active authentication requests and identity lookups, and switching to pwd_expire_policy_reject changes behavior so that users with expired passwords are denied instead of warned."
        }
      ],
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      "x_redhatCweChain": "CWE-393: Return of Wrong Status Code"
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  "cveMetadata": {
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    "assignerShortName": "redhat",
    "cveId": "CVE-2026-92821",
    "datePublished": "2026-10-06T00:12:23.782Z",
    "dateReserved": "2026-09-16T20:30:01.964Z",
    "dateUpdated": "2026-10-16T12:19:27.632Z",
    "state": "PUBLISHED"
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}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Sightings

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Vulnerability timeline

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