RCE in GitLab
CVE-2025-6945
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (17.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 17.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- GitLab — versions 17.8, 18.4, 18.5
Weakness classification (CWE)
References
- about.gitlab.com/releases/2025/11/12/patch-release-gitlab-18-5-2-released/ (Release Notes, Vendor Advisory)
- gitlab.com/gitlab-org/gitlab/-/issues/552611 (issue-tracking, permissions-required, Broken Link)
- hackerone.com/reports/3173458 (Permissions Required, technical-description, permissions-required, exploit)
Frequently asked questions
- What is CVE-2025-6945?
- CVE-2025-6945 is a low-severity vulnerability in GitLab, classified under Command Injection. CVSS score: 3.5/10. Published 2025-11-15.
- How severe is CVE-2025-6945?
- Low severity. CVSS v3 base score is 3.5 out of 10.