{"id":"CVE-2026-104038","published":"2026-10-06T01:16:34.853","lastModified":"2026-10-07T21:17:07.993","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.","cvssScore":5.9,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-476"],"vendors":[],"products":[],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-104038","tags":[]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478980","tags":[]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478980","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}