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, 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."

CVSS v3.1

8.0 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

EPSS

0.52% chance of exploitation in the next 30 days, 42th percentile

Published

2025-12-11

Updated

2026-02-26

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3317485

References

• CVE Record
• NVD entry

Related

• CVE-2025-1202
• CVE-2025-1203
• CVE-2025-1201
• CVE-2025-12030
• CVE-2025-1200
• CVE-2025-12055