VULNERABILITY INTELLIGENCE
CVE-2025-12390
CVSS score6 MEDIUM
EPSS probability0.14%
CISA KEVNot currently listed
Published2025-10-28
Last modified2026-10-18
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
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.
Weakness classification
- secalert@redhat.com: CWE-384