Unrated severityNVD Advisory· Published Dec 11, 2025· Updated Feb 26, 2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
CVE-2025-12029
Description
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."
Affected products
2cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*range: 15.11
- (no CPE)range: >=15.11 <18.4.6, >=18.5 <18.5.4, >=18.6 <18.6.2
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- hackerone.com/reports/3317485mitretechnical-descriptionexploitpermissions-required
- gitlab.com/gitlab-org/gitlab/-/issues/577975mitreissue-trackingpermissions-required
- about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/mitre
News mentions
1- GitLab Patch Release: 18.6.2, 18.5.4, 18.4.6GitLab Security Releases · Dec 10, 2025