CVEvulnerability
CVE-2026-104038
5.9 MEDIUM
Official page ↗
- Status
- Undergoing Analysis
- Published
- 2026-10-06
- Last modified
- 2026-10-07
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
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.
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://access.redhat.com/security/cve/CVE-2026-104038 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2478980 bugzilla.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2478980 bugzilla.redhat.com