GitLab 8.10 and later through 12.9 is vulnerable to an SSRF in a project import note feature.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-3360
https://about.gitlab.com/releases/categories/releases/
https://about.gitlab.com/releases/2020/03/26/security-release-12-dot-9-dot-1-released/