CVE-2026-90995 — Sssd: sssd: local denial of service due to null pointer dereference in pam responder
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…
Published: 2026-09-14 · CVSS: 5.5 · CVSS 3.1
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 `pam_app_services` 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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7