CVE-2025-6454

Server-Side Request Forgery (SSRF) in GitLab

CVSS 8.5 HIGHEPSS 0.6%CWE-918

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.

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

Affected products

GitLab · GitLab

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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