CVE-2025-6454

EUVD-2025-29020
An issue has been discovered in GitLab CE/EE affecting all versions from 16.11 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2 that could have allowed authenticated users to make unintended internal requests through proxy environments by injecting crafted sequences.
SSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.5 HIGH
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 51.79%
Affected Products (NVD)
VendorProductVersion
gitlabgitlab
16.11.0 ≤
𝑥
< 18.1.6
gitlabgitlab
18.2.0 ≤
𝑥
< 18.2.6
gitlabgitlab
18.3.0 ≤
𝑥
< 18.3.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://about.gitlab.com/releases/2025/09/10/patch-release-gitlab-18-3-2-released/
https://gitlab.com/gitlab-org/gitlab/-/issues/550766
https://hackerone.com/reports/3162711