CVE-2026-3035
MEDIUM 5.5 ALL-YEARSGitLab 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.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.3%chance of exploitation in 30 days · 24th percentile
Impact if exploited
5.5CVSS 3.1 · MEDIUM · CNA
- ConfidentialityLow
- IntegrityLow
- AvailabilityNone
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires an admin / high-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
Search for new PoCs
Search GitHub now — results may be empty or unverified.
Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Data snapshot:
Weakness (CWE)
- CWE-288: : Authentication Bypass Using an Alternate Path or Channel
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
References and research data (JSON)
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Gitlab | Gitlab | ≥ 11.3.0 and < 19.1.7 |
| Gitlab | Gitlab | ≥ 19.2.0 and < 19.2.5 |
| Gitlab | Gitlab | 19.3.0 |
All CVSS metrics
- MEDIUM 5.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N - MEDIUM 5.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
References
Exploit-tagged references (not proof of a PoC)
- https://hackerone.com/reports/3529751 CVE record · GitLab · Updated 2026-08-26T13:36:45.137Z
NVD · CVE-2026-3035 · Updated 2026-08-31T15:42:23.067
Advisories
- https://gitlab.com/gitlab-org/gitlab/-/work_items/591189 CVE record · GitLab · Updated 2026-08-26T13:36:45.137Z
NVD · CVE-2026-3035 · Updated 2026-08-31T15:42:23.067 - https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/ CVE record · GitLab · Updated 2026-08-26T13:36:45.137Z
NVD · CVE-2026-3035 · Updated 2026-08-31T15:42:23.067 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-66431 EUVD · EUVD-2026-66431
Sources: NVD · CVE.org · All sources and attribution · EPSS