Description
An issue was discovered in GitLab CE/EE affecting all versions prior to 16.11.6, starting from 17.0 prior to 17.0.4, and starting from 17.1 prior to 17.1.2, which allows a subdomain takeover in GitLab Pages.
Problem types
CWE-1023: Incomplete Comparison with Missing Factors
Product status
0.0 (semver) before 16.11.6
17.0 (semver) before 17.0.4
17.1 (semver) before 17.1.2
Credits
Thanks [fdeleite](https://hackerone.com/fdeleite) for reporting this vulnerability through our HackerOne bug bounty program
References
about.gitlab.com/...10/patch-release-gitlab-17-1-2-released/
gitlab.com/gitlab-org/gitlab/-/issues/464558 (GitLab Issue #464558)
hackerone.com/reports/2523654 (HackerOne Bug Bounty Report #2523654)