Resource exhaustion in GitLab
CVE-2025-13927
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.9 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2 that could have allowed an unauthenticated user to create a denial of service condition by sending crafted requests with malformed authentication data.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.008 · change: -0.000
Affected products
- GitLab — versions 11.9, 18.7, 18.8
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/582737 (issue-tracking, permissions-required, Broken Link)
- hackerone.com/reports/3439683 (Permissions Required, technical-description, permissions-required, exploit)
- about.gitlab.com/releases/2026/01/21/patch-release-gitlab-18-8-2-released/ (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-13927?
- CVE-2025-13927 is a high-severity vulnerability in GitLab, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-01-22.
- How severe is CVE-2025-13927?
- High severity. CVSS v3 base score is 7.5 out of 10.