GitLab: SSRF when importing a project from a git repo by URL

Fixed in 8.17.4, 8.16.8, and 8.15.8 SSRF when importing a project from a Repo by URL GitLab instances that have enabled project imports using "Repo by URL" were vulnerable to Server-Side Request Forgery attacks. By specifying a project import URL of localhost an attacker could target services tha...