Auth bypass in GitLab
CVE-2025-11340
GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 to 18.3.4, 18.4 to 18.4.2 that, under certain conditions, could have allowed authenticated users with read-only API tokens to perform unauthorized write operations on vulnerability records by exploiting incorrectly scoped GraphQL mutations.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (29.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.0% 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: 0.004 · change: +0.000
Affected products
- GitLab — versions 18.3, 18.4
Weakness classification (CWE)
References
- about.gitlab.com/releases/2025/10/08/patch-release-gitlab-18-4-2-released/ (Release Notes, Vendor Advisory)
- gitlab.com/gitlab-org/gitlab/-/issues/567847 (issue-tracking, permissions-required, Broken Link)
Frequently asked questions
- What is CVE-2025-11340?
- CVE-2025-11340 is a high-severity vulnerability in GitLab, classified under Incorrect Authorization. CVSS score: 7.7/10. Published 2025-10-09.
- How severe is CVE-2025-11340?
- High severity. CVSS v3 base score is 7.7 out of 10.