CVE-2026-104038 — Sssd: sssd: denial of service via missing sid extension in certificate mapping
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 deploy…
Published: 2026-10-06 · CVSS: 5.9 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7