Oracle Linux 10 : sssd (ELSA-2026-77534)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-77534 advisory. - Resolves: RHEL-257112 - CVE-2026-87853 sssd: IDP prefix-match bypass in evalaccesstokenbuf - Resolves: RHEL-192056 - CVE-2026-14474 sssd: sssd: sudo LDAP...

sssd: sssd: IdP authentication prefix comparison allows cross-user impersonation

A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix...

sssd security update

2.12.0-3.0.1.el102.2 - Restore default debug level for ssscache Orabug: 32810448 2.12.0-3.2 - Resolves: RHEL-257112 - CVE-2026-87853 sssd: IDP prefix-match bypass in evalaccesstokenbuf 2.12.0-3.1 - Resolves: RHEL-192056 - CVE-2026-14474 sssd: sssd: sudo LDAP provider searches entire directory tre...

CVE-2026-87853

A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix...

CVE-2026-87853

SSSD (System Security Services Daemon) contains a flaw in its IdP authentication provider . The eval_access_token_buf() function compares the OIDC subject identifier using strncmp() with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attac...

CVE-2026-87853: Partial String Comparison

A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticated user's identifier length, performing a prefix comparison instead of an exact match. An attacker whose IdP identifier is a strict prefix...