Vulnerability in GitLab
CVE-2026-15387
GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with developer-role permissions could have influenced the execution environment of Pipeline Execution Policy enforcement jobs, due to improper handling of job dependencies.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (9.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- GitLab — versions 19.3.0
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/work_items/605632 (Issue Tracking, Vendor Advisory)
- hackerone.com/reports/3754358 (Permissions Required, technical-description, permissions-required, Third Party Advisory, exploit)
- docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/ (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-15387?
- CVE-2026-15387 is a medium-severity vulnerability in GitLab, classified under CWE-349. CVSS score: 4.3/10. Published 2026-08-26.
- How severe is CVE-2026-15387?
- Medium severity. CVSS v3 base score is 4.3 out of 10.