PT-2026-40866 · Gitlab · Gitlab

Published 2026-05-14 · Updated 2026-05-14 · CVE-2026-4524

Mitre

CVSS v3.1

6.5

Medium

Base vector

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

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9.1 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to access confidential issue content in public projects without proper authorization due to improper authorization checks.

Exploit

Fix

Authentication Bypass Using an Alternate Path or Channel

Weakness Enumeration

CWE-288

Related Identifiers

CVE-2026-4524

Affected Products

Gitlab

References · 4

• 🔥 https://hackerone.com/reports/3597717 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-4524 · Security Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/594295 · Note
• https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released · Note