CVEvulnerability

CVE-2026-104036

5.8 MEDIUM Published 2026-10-06 Modified 2026-10-06 Official page ↗
Status
Undergoing Analysis
Published
2026-10-06
Last modified
2026-10-06
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.8 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Weaknesses
CWE-787

Description

A flaw was found in SSSD's NFS idmap plugin. When retrieving cached user or group names, the plugin detects if an entry exceeds the destination buffer size but fails to abort before copying data. A local attacker can trigger this vulnerability by requesting identity lookups that resolve to oversized cached entries, resulting in an out-of-bounds write. This flaw primarily leads to a Denial of Service (DoS) by crashing the identity mapping service, and may also corrupt adjacent process memory.

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References