CVE-2019-15581: GitLab

Medium severity, CVSS 5.3. EPSS: 1% chance of exploitation in the next 30 days.

An IDOR exists in < 12.3.2, < 12.2.6, and < 12.1.12 for GitLab Community Edition (CE) and Enterprise Edition (EE) that allowed a project owner or maintainer to see the members of any private group via merge request approval rules.

Affected products

• GitLab GitLab: from 12.1.0, before 12.1.12 (fixed in 12.1.12); from 12.2.0, before 12.2.6 (fixed in 12.2.6); from 12.3.0, before 12.3.2 (fixed in 12.3.2)

Published 2020-01-28. Last modified 2026-06-17.