CVE-2025-12029

high

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."

References

https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/

https://hackerone.com/reports/3317485

https://gitlab.com/gitlab-org/gitlab/-/issues/577975

Details

Source: Mitre, NVD

Published: 2025-12-11

Updated: 2025-12-23

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 8

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Severity: High

EPSS

EPSS: 0.00044