CVE-2023-3906: GitLab

Low severity, CVSS 3.5. EPSS: 0.6% chance of exploitation in the next 30 days.

An input validation issue in the asset proxy in GitLab EE, affecting all versions from 12.3 prior to 16.2.8, 16.3 prior to 16.3.5, and 16.4 prior to 16.4.1, allowed an authenticated attacker to craft image urls which bypass the asset proxy.

Affected products

• GitLab GitLab: from 12.3, before 16.2.8 (fixed in 16.2.8); from 16.3.0, before 16.3.5 (fixed in 16.3.5); version 16.4.0 only

Published 2023-09-29. Last modified 2026-06-17.