CVE-2025-6945 | THREATINT

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 17.8 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to leak sensitive information from confidential issues by injecting hidden prompts into merge request comments.

PUBLISHED Reserved 2025-07-01 | Published 2025-11-15 | Updated 2025-11-17 | Assigner GitLab

LOW: 3.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Problem types

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

Product status

Default status

unaffected

17.8 (semver) before 18.3.6

affected

18.4 (semver) before 18.4.4

affected

18.5 (semver) before 18.5.2

affected

Credits

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

References

about.gitlab.com/...12/patch-release-gitlab-18-5-2-released/

gitlab.com/gitlab-org/gitlab/-/issues/552611 (GitLab Issue #552611) issue-tracking permissions-required

hackerone.com/reports/3173458 (HackerOne Bug Bounty Report #3173458) technical-description exploit permissions-required

cve.org (CVE-2025-6945)

nvd.nist.gov (CVE-2025-6945)

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