CVE-2026-104038
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7
Published 6 Oct 2026 · updated 6 Oct 2026 · Awaiting Analysis
5.9 Medium · CVSS 3.1, redhat.com
Description
A flaw was found in sssd. A remote attacker can cause a denial of service (DoS) by submitting a certificate that lacks an expected Security Identifier (SID) extension. In deployments configured with SID-based certificate mapping rules, the service fails to verify the presence of the extension before processing it, causing the process to crash during authentication or lookup operations.