PT-2026-40871 · Gitlab · Gitlab

Published 2026-05-14 · Updated 2026-05-14 · CVE-2026-6063

Mitre

CVSS v3.1

4.3

Medium

Base vector

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

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.

Exploit

Fix

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-6063

Affected Products

Gitlab

References · 4

• 🔥 https://hackerone.com/reports/3649087 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-6063 · Security Note
• https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released · Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/596332 · Note