CVE-2026-104041
MEDIUM
NVD
CVSS Score
5.5
Severity
MEDIUM
Published
Oct 06, 2026
Vendor
unknown
Description
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.