VULNERABILITY INTELLIGENCE

CVE-2026-90995

CVSS score5.5 MEDIUM
EPSS probability0.14%
CISA KEVNot currently listed
Published2026-09-14
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • secalert@redhat.com: CWE-476

Primary references