The Auth0 integration in GitLab before 10.3.9, 10.4.x before 10.4.6, and 10.5.x before 10.5.6 has an incorrect omniauth-auth0 configuration, leading to signing in unintended users.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "10.3.8"
},
{
"introduced": "10.4.0"
},
{
"last_affected": "10.4.5"
},
{
"introduced": "10.5.0"
},
{
"last_affected": "10.5.5"
},
{
"introduced": "0"
},
{
"last_affected": "9.0"
}
]
}