Vulnerability in GitLab
CVE-2026-3035
GitLab has remediated an issue in GitLab EE affecting all versions from 11.3 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 project Maintainer permissions could have accessed the terminal of a protected environment they were not authorized to use due to improper authorization checks.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.5% 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: 0.003 · change: +0.001
Affected products
- GitLab — versions 19.3.0
Weakness classification (CWE)
References
- hackerone.com/reports/3529751 (Permissions Required, technical-description, permissions-required, Third Party Advisory, exploit)
- gitlab.com/gitlab-org/gitlab/-/work_items/591189 (Issue Tracking, Vendor Advisory)
- docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/ (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-3035?
- CVE-2026-3035 is a medium-severity vulnerability in GitLab, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 5.5/10. Published 2026-08-26.
- How severe is CVE-2026-3035?
- Medium severity. CVSS v3 base score is 5.5 out of 10.