Security Advisory

CVE-2026-90995

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-14 15:55:32

Last updated 2026-09-14 15:55:32

Assigner redhat

CVSS score 5.5

State PUBLISHED

Description

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.

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