In all versions of GitLab CE/EE, provided a user ID, anonymous users can use a few endpoints to retrieve information about any GitLab user.
{ "cpes": [ "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "cpe:2.3:a:gitlab:gitlab:4.3.0:*:*:*:community:*:*:*", "cpe:2.3:a:gitlab:gitlab:4.3.0:*:*:*:enterprise:*:*:*", "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*" ], "severity": "Medium" }