CVE-2026-90996: Fedoraproject Sssd

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

A flaw was found in sssd. A local unprivileged user could send a specially crafted request with a zero-length body to the Network Security Services (NSS) responder. This could lead to a denial-of-service condition, causing the NSS responder to become unstable or terminate. This vulnerability affects the availability of the system responder.

Affected products

• Fedoraproject Sssd: version 2.12.0 only
• Red Hat Enterprise Linux: version 7.0 only; version 8.0 only; version 9.0 only; version 10.0 only
• Red Hat Openshift Container Platform: version 4.0 only

Published 2026-09-14. Last modified 2026-10-07.