Home/CVE/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 1
CVE

CVE-2026-6063

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 1

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.

MEDIUM · CVSS 4.3 EPSS 0.00011
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-639Authorization Bypass Through User-Controlled Key
▤

Affected Products & Versions

3
gitlab>= 11.10.0 and < 18.9.7
gitlab>= 18.10.0 and < 18.10.6
gitlab>= 18.11.0 and < 18.11.3
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v3.1 · cve@gitlab.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 May 2026 · 06:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
gitlab-securitypatch-release-gitlab-18-11-3-released
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/596332Not Applicable
https://hackerone.com/reports/3649087Permissions Required
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