CVE-2026-2104 MEDIUM

CVE-2026-2104: Authorization Bypass Through User-Controlled Key in GitLab

Vendor Gitlab
Product GitLab
Weakness CWE-639 · IDOR
Published April 8, 2026
Last update April 9, 2026

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to access confidential issues assigned to other users via CSV export due to insufficient authorization checks.

Key dates

02Disclosure timeline

April 8, 2026 CVE published
April 9, 2026 Record updated