CVE-2019-15585
Improper authentication exists in < 12.3.2, < 12.2.6, and < 12.1.12 for GitLab Community Edition (CE) and Enterprise Edition (EE) in the GitLab SAML integration had a validation issue that permitted an attacker to takeover another user's account. Date published : 2020-01-27 https://about.gitlab.com/blog/2019/09/30/security-release-gitlab-12-dot-3-dot-2-released/