CVE-2026-90995
A flaw was found in SSSD (System Security Services Daemon).
Published Sep 14, 2026 · updated Oct 14, 2026 · fedoraproject sssd
A flaw was found in SSSD (System Security Services Daemon). A local attacker with privileges to connect to the PAM (Pluggable Authentication Modules) responder socket can send a specially crafted protocol request. If the configuration is enabled and the service item is omitted from the request, a NULL pointer dereference can occur. This vulnerability leads to a denial of service, causing the PAM responder to crash and disrupt authentication services.
Timeline
Detection, updates, and resolution for this record.
Sep 14, 2026 · NIST NVD
Detected
A flaw was found in SSSD (System Security Services Daemon). A local attacker with privileges to connect to the PAM (Pluggable Authentication Modules) responder socket can send a specially crafted protocol request. If the configuration is enabled and the service item is omitted from the request, a NULL pointer dereference can occur. This vulnerability leads to a denial of service, causing the PAM r
Oct 14, 2026 · NIST NVD
Updated
A flaw was found in SSSD (System Security Services Daemon). A local attacker with privileges to connect to the PAM (Pluggable Authentication Modules) responder socket can send a specially crafted protocol request. If the configuration is enabled and the service item is omitted from the request, a NULL pointer dereference can occur. This vulnerability leads to a denial of service, causing the PAM r
Affected
- cpe fedoraproject/sssd2.12.0
- cpe redhat/enterprise linux10.0
- cpe redhat/enterprise linux7.0
- cpe redhat/enterprise linux8.0
- cpe redhat/enterprise linux9.0
- cpe redhat/openshift container platform4.0
Sources
- CVE.orgCVE-2026-90995
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-90995
30-day exploitation probability 0.2%
first.org - NIST NVDCVE-2026-90995
A flaw was found in SSSD (System Security Services Daemon). A local attacker with privileges to connect to the PAM (Pluggable Authentication Modules) responder socket can send a specially crafted protocol request. If the configuration is enabled and the service
nvd.nist.gov