CVE-2025-12029: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 before 18.4.6, 18.5 before 18.5.4…
CVE-2025-12029 · Severity: high · CVSS 8 · Published 2025-12-11
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have, under certain circumstances, allowed an unauthenticated user to perform unauthorized actions on behalf of another user by injecting malicious external scripts into the Swagger UI."
No. Junglewise Threat Intelligence has no report of CVE-2025-12029 being exploited in the wild.
How severe is CVE-2025-12029?
High severity, with a CVSS score of 8, published 11 December 2025.
Which products and versions are affected?
GitLab. The advisory does not name versions.
Is there a fix for CVE-2025-12029?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-12029?
Check whether you run GitLab. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.