CVE-2023-0838: GitLab

Low severity, CVSS 3.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue has been discovered in GitLab affecting versions starting from 15.1 before 15.8.5, 15.9 before 15.9.4, and 15.10 before 15.10.1. A maintainer could modify a webhook URL to leak masked webhook secrets by adding a new parameter to the url. This addresses an incomplete fix for CVE-2022-4342.

Affected products

• GitLab GitLab: from 15.1.0, before 15.8.5 (fixed in 15.8.5); from 15.9.0, before 15.9.4 (fixed in 15.9.4); version 15.10.0 only

Published 2023-04-05. Last modified 2026-06-17.