CVEvulnerability

CVE-2026-104034

4.7 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])
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-825

Description

A flaw was found in SSSD. A use-after-free vulnerability exists in the Kerberos Credential Manager (KCM) responder during Kerberos ticket-granting ticket (TGT) renewal, where a deferred callback accesses memory that has already been released. An authenticated local user with a renewable Kerberos ticket can trigger this issue on systems configured with KCM renewal, causing the KCM responder service to crash and resulting in a Denial of Service (DoS).

Related

Weakness · CWE (1)

  • CWE-825 Expired Pointer Dereference weakness

References