CVEvulnerability

CVE-2025-12390

6.0 MEDIUM Published 2025-10-28 Modified 2026-10-18 Official page ↗
Status
Deferred
Published
2025-10-28
Last modified
2026-10-18
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.0 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
Weaknesses
CWE-384

Description

A flaw was found in Keycloak. In Keycloak where a user can accidentally get access to another user's session if both use the same device and browser. This happens because Keycloak sometimes reuses session identifiers and doesn’t clean up properly during logout when browser cookies are missing. As a result, one user may receive tokens that belong to another user.

Related

Weakness · CWE (1)

  • CWE-384 Session Fixation weakness

References