Resource exhaustion in GitLab
CVE-2025-11447
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.0 before 18.3.5, 18.4 before 18.4.3, and 18.5 before 18.5.1 that could have allowed an unauthenticated attacker to cause a denial of service condition by sending GraphQL requests with crafted JSON payloads.
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 (55.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000
Affected products
- GitLab — versions 11.0, 18.4, 18.5
Weakness classification (CWE)
References
- about.gitlab.com/releases/2025/10/22/patch-release-gitlab-18-5-1-released/ (Release Notes, Vendor Advisory)
- gitlab.com/gitlab-org/gitlab/-/issues/574858 (issue-tracking, permissions-required, Broken Link)
- hackerone.com/reports/3367019 (Permissions Required, technical-description, permissions-required, exploit)
Frequently asked questions
- What is CVE-2025-11447?
- CVE-2025-11447 is a high-severity vulnerability in GitLab, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-10-27.
- How severe is CVE-2025-11447?
- High severity. CVSS v3 base score is 7.5 out of 10.