In GitLab before 13.0.12, 13.1.6 and 13.2.3, it is possible to bypass E-mail verification which is required for OAuth Flow.
{ "cpes": [ "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*", "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*" ], "severity": "Critical" }