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.
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Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 06 Oct 2026 00:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Sssd: sssd: denial of service via missing sid extension in certificate mapping | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat openshift |
|
| Weaknesses | CWE-476 | |
| CPEs | cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat openshift |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-10-06T00:52:58.458Z
Reserved: 2026-10-01T17:22:59.849Z
Link: CVE-2026-104038
No data.
Status : Received
Published: 2026-10-06T01:16:34.853
Modified: 2026-10-06T01:16:34.853
Link: CVE-2026-104038
No data.
OpenCVE Enrichment
Updated: 2026-10-06T01:30:09Z
Weaknesses