RCE in GitLab
CVE-2026-1516
GitLab has remediated an issue in GitLab EE affecting all versions from 18.0.0 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that in Code Quality reports could have allowed an authenticated user to leak IP addresses of users viewing the report via specially crafted content.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- GitLab — versions 18.0.0, 18.9, 18.10
Weakness classification (CWE)
References
- hackerone.com/reports/3514461 (Permissions Required, technical-description, permissions-required, exploit)
- gitlab.com/gitlab-org/gitlab/-/work_items/587893 (Broken Link)
- about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/ (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-1516?
- CVE-2026-1516 is a medium-severity vulnerability in GitLab, classified under Code Injection. CVSS score: 5.7/10. Published 2026-04-08.
- How severe is CVE-2026-1516?
- Medium severity. CVSS v3 base score is 5.7 out of 10.