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.
{
"severity": "Medium",
"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:*:*:*:*:*:*:*:*"
]
}