Vulnerability Monitor

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CVE-2025-12653

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.3 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that under specific conditions could have allowed an unauthenticated user to join arbitrary organizations by changing headers on some requests.

Published

2025-11-26T20:15:49.023

Last Modified

2025-12-10T23:15:47.973

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-290
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gitlab gitlab < 18.4.5 Yes
Application gitlab gitlab < 18.4.5 Yes
Application gitlab gitlab < 18.5.3 Yes
Application gitlab gitlab < 18.5.3 Yes
Application gitlab gitlab 18.6.0 Yes
Application gitlab gitlab 18.6.0 Yes
References