CVE-2026-90995CWE-476

CVE-2026-90995

Medium · published September 14, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
2.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00135 · 2.7th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2026-09-14T20:17Z
Affected products (6)
ProductVersionsFixed in
fedoraproject/sssdall versions—
redhat/openshift_container_platformall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
References (2)
https://access.redhat.com/security/cve/CVE-2026-90995 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2479464 · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 14 SEP 15:55Z
    Sssd: sssd: local denial of service due to null pointer dereference in pam responder
    cvelistv5