CVE-2026-6063 — MEDIUM (4.3)

Q: How severe is CVE-2026-6063?

CVE-2026-6063 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-6063?

Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.

Vulnerability Description

GitLab has remediated an issue in GitLab EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that under certain conditions could have allowed an authenticated user with developer-role permissions to remove code owner approval rules from merge requests due to improper access control.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Gitlab	Gitlab	>= 11.10.0, < 18.9.7

Related Weaknesses (CWE)

CWE-639

References

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-releasRelease Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/596332Not Applicable
https://hackerone.com/reports/3649087Permissions Required

FAQ

What is CVE-2026-6063?

CVE-2026-6063 is a vulnerability with a CVSS score of 4.3 (MEDIUM). GitLab has remediated an issue in GitLab EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that under certain conditions could have allowed an authenti...

How severe is CVE-2026-6063?

CVE-2026-6063 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-6063?

Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.