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.

INFO

Published Date :

2025-10-28T13:23:34.634Z

Last Modified :

2025-10-28T13:45:19.173Z

Source :

redhat
AFFECTED PRODUCTS

The following products are affected by CVE-2025-12390 vulnerability.

Vendors Products
Redhat
  • Build Keycloak
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-12390.

URL Resource
https://access.redhat.com/security/cve/CVE-2025-12390 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2406793 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-12390 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-12390 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact