CVE-2026-68742: Fedoraproject Sssd

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

A flaw was found in SSSD. The sss_nss_protocol_parse_addr() function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.

Affected products

• Fedoraproject Sssd: affected versions not specified
• 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 2026-08-03. Last modified 2026-08-31.