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...

DEBIAN-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

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...

UBUNTU-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...

EUVD-2026-75084

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: 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...

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 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...

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

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...

Linux Distros Unpatched Vulnerability : CVE-2026-87853

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in SSSD's IdP authentication provider. The evalaccesstokenbuf function compares the OIDC subject identifier using strncmp with the authenticate...

PT-2026-89096

Name of the Vulnerable Software and Affected Versions SSSD affected versions not specified Description A flaw exists in the IdP authentication provider where the eval access token buf function uses strncmp to compare the OIDC subject identifier with the authenticated user's identifier length. Thi...

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...

openSUSE 16: libipa_hbac-devel / libipa_hbac0 / libnfsidmap-sss / etc (openSUSE-SU-2026:21748-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21748-1 advisory. Security issues fixed: - CVE-2026-68742: insufficient validation in the NSS responder can lead to an out-of-bounds read and a process crash when...

EulerOS 2.0 SP12 : sssd (EulerOS-SA-2026-3314)

According to the versions of the sssd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory...

EulerOS 2.0 SP12 : sssd (EulerOS-SA-2026-3389)

According to the versions of the sssd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory...

Security update for sssd

This update for sssd fixes the following issue: CVE-2026-68743: oversized length parameters in authentication requests can cause heap out-of-bounds reads bsc1273925. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper...

SUSE-SU-2026:4027-1 Security update for sssd

This update for sssd fixes the following issue: - CVE-2026-68743: oversized length parameters in authentication requests can cause heap out-of-bounds reads bsc1273925...

OESA-2026-3648 sssd security update

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...

OESA-2026-3647 sssd security update

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...