CVE-2026-104041 — Sssd: sssd: denial of service via unbounded negative cache growth
A flaw was found in SSSD. An unprivileged local user can repeatedly request lookups for nonexistent entries through the Name Service Switch (NSS) responder. Because the negative…
Published: 2026-10-06 · CVSS: 5.5 · CVSS 3.1
A flaw was found in SSSD. An unprivileged local user can repeatedly request lookups for nonexistent entries through the Name Service Switch (NSS) responder. Because the negative cache does not limit the total number of stored entries and only removes expired records when an existing key is rechecked, the cache can grow without bound. This behavior can lead to memory exhaustion, resulting in a Denial of Service (DoS) as the responder becomes unresponsive or terminates.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7