Session Fixation Affecting keycloak-doc package, versions <26.4.4-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.02% (6th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-KEYCLOAKDOC-13861119
  • published8 Nov 2025
  • disclosed28 Oct 2025

Introduced: 28 Oct 2025

CVE-2025-12390  (opens in a new tab)
CWE-384  (opens in a new tab)

How to fix?

Upgrade Minimos:latest keycloak-doc to version 26.4.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keycloak-doc package and not the keycloak-doc package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1