Resource exhaustion in GitLab
CVE-2026-1387
GitLab has remediated an issue in GitLab EE affecting all versions from 15.6 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that could have allowed an authenticated user to cause Denial of Service by uploading a malicious file and repeatedly querying it through GraphQl.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (20.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.4% 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 15.6, 18.7, 18.8
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/587546 (issue-tracking, permissions-required, Issue Tracking, Broken Link)
- hackerone.com/reports/3515994 (technical-description, permissions-required, exploit, Broken Link)
- about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/ (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-1387?
- CVE-2026-1387 is a medium-severity vulnerability in GitLab, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-02-11.
- How severe is CVE-2026-1387?
- Medium severity. CVSS v3 base score is 6.5 out of 10.