CVE-2026-104038
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|
Weaknesses
- CWE-476: NULL Pointer Dereference
References
- https://access.redhat.com/security/cve/CVE-2026-104038
- https://bugzilla.redhat.com/show_bug.cgi?id=2478980
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