A cross-site leak vulnerability in the OAuth flow of all versions of GitLab CE/EE since 7.10 allowed an attacker to leak an OAuth access token by getting the victim to visit a malicious page with Safari
https://hackerone.com/reports/1089277
https://gitlab.com/gitlab-org/gitlab/-/issues/300308
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22213.json