Access Control Flaw in GitLab EE Affects Multiple Versions
CVE-2026-6063

4.3MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
14 May 2026

What is CVE-2026-6063?

GitLab EE has addressed a security flaw that could have permitted an authenticated user with developer permissions to bypass code owner approval rules from merge requests. This issue, stemming from inadequate access control measures, impacts specific GitLab EE versions. Administrators are advised to update to the latest patched versions to safeguard against potential exploit scenarios.

Affected Version(s)

GitLab 11.10 < 18.9.7

GitLab 18.10 < 18.10.6

GitLab 18.11 < 18.11.3

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/596332
https://hackerone.com/reports/3649087
technical-descriptionexploitpermissions-required
https://about.gitlab.com/releases/2026/05/13/patch-releas...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [pollito](https://hackerone.com/pollito) for reporting this vulnerability through our HackerOne bug bounty program
.