CVE-2025-6454 | THREATINT

Description

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.

PUBLISHED Reserved 2025-06-20 | Published 2025-09-12 | Updated 2025-09-12 | Assigner GitLab

HIGH: 8.5CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Problem types

CWE-918: Server-Side Request Forgery (SSRF)

Product status

Default status

unaffected

16.11 (semver) before 18.1.6

affected

18.2 (semver) before 18.2.6

affected

18.3 (semver) before 18.3.2

affected

Credits

Thanks [ppee](https://hackerone.com/ppee) for reporting this vulnerability through our HackerOne bug bounty program finder

References

about.gitlab.com/...10/patch-release-gitlab-18-3-2-released/

gitlab.com/gitlab-org/gitlab/-/issues/550766 (GitLab Issue #550766) issue-tracking permissions-required

hackerone.com/reports/3162711 (HackerOne Bug Bounty Report #3162711) technical-description exploit permissions-required

cve.org (CVE-2025-6454)

nvd.nist.gov (CVE-2025-6454)

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