CVE-2025-12029

EUVD-2025-202667
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."
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
GitLabCNA
8 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 34%
Affected Products (NVD)
VendorProductVersion
gitlabgitlab
15.11.0 ≤
𝑥
< 18.4.6
gitlabgitlab
15.11.0 ≤
𝑥
< 18.4.6
gitlabgitlab
18.5.0 ≤
𝑥
< 18.5.4
gitlabgitlab
18.5.0 ≤
𝑥
< 18.5.4
gitlabgitlab
18.6.0 ≤
𝑥
< 18.6.2
gitlabgitlab
18.6.0 ≤
𝑥
< 18.6.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
gitlab
sid
vulnerable
Common Weakness Enumeration
References
https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/
https://gitlab.com/gitlab-org/gitlab/-/issues/577975
https://hackerone.com/reports/3317485