CVE-2026-4916
LOW 2.7 ALL-YEARSGitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user with custom role permissions to demote or remove higher-privileged group members due to improper authorization checks on member management operations.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.3%chance of exploitation in 30 days · 28th percentile
Impact if exploited
2.7CVSS 3.1 · LOW · CNA
- ConfidentialityNone
- 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-862: : Missing Authorization
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
References and research data (JSON)
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Gitlab | Gitlab | ≥ 18.2.0 and < 18.8.9 |
| Gitlab | Gitlab | ≥ 18.9.0 and < 18.9.5 |
| Gitlab | Gitlab | ≥ 18.10.0 and < 18.10.3 |
| Gitlab | Gitlab | ≥ 18.2.0 and < 18.8.9 |
| Gitlab | Gitlab | ≥ 18.9.0 and < 18.9.5 |
| Gitlab | Gitlab | ≥ 18.10.0 and < 18.10.3 |
All CVSS metrics
- LOW 2.7 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N - LOW 2.7 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
References
Exploit-tagged references (not proof of a PoC)
- https://hackerone.com/reports/3301240 CVE record · GitLab · Updated 2026-04-08T22:25:22.837Z
NVD · CVE-2026-4916 · Updated 2026-07-24T20:10:00.147
Advisories
- https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/ CVE record · GitLab · Updated 2026-04-08T22:25:22.837Z
NVD · CVE-2026-4916 · Updated 2026-07-24T20:10:00.147 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-20801 EUVD · EUVD-2026-20801
Technical & other
- https://gitlab.com/gitlab-org/gitlab/-/work_items/565414 CVE record · GitLab · Updated 2026-04-08T22:25:22.837Z
NVD · CVE-2026-4916 · Updated 2026-07-24T20:10:00.147
Sources: NVD · CVE.org · All sources and attribution · EPSS