GitLab 10.8 through 12.9 has a vulnerability that allows someone to mirror a repository even if the feature is not activated.
{ "binaries": [ { "binary_version": "8.5.8+dfsg-5", "binary_name": "gitlab" } ] }
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-12277.json"