CVE-2026-104044CWE-476

CVE-2026-104044

Medium · published October 6, 2026

CVSS v3.1
6.2
EPSS
0%
Percentile
1.7
In the wild
Unconfirmed
What it is

A flaw was found in sssd. A local attacker can trigger a Denial of Service (DoS) by sending a specially crafted Pluggable Authentication Module (PAM) request when passkey authentication is enabled. Due to a missing state validation check in passkey Kerberos handling, the PAM responder dereferences an uninitialized pointer and crashes. This failure disrupts authentication services on the host.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00120 · 1.7th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2026-10-06T06:17Z
References (2)
https://access.redhat.com/security/cve/CVE-2026-104044 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2478664 · [email protected]
EPSS history
Timeline
  • 07 OCT 03:39Z
    EPSS moved — → 0%
    epss
  • 06 OCT 01:02Z
    Sssd: sssd: denial of service via crafted passkey kerberos authentication request
    cvelistv5