CVE-2026-5173 HIGH

CVE-2026-5173: Exposed Dangerous Method or Function in GitLab

Vendor Gitlab
Product GitLab
Weakness CWE-749
Published April 8, 2026
Last update April 9, 2026
View on NVD All CVEs

CVSS base score

8.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9.6 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 invoke unintended server-side methods through websocket connections due to improper access control.

Key dates

02Disclosure timeline

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