Improper access control in the GraphQL API in GitLab CE/EE affecting all versions starting from 13.0 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an attacker to see the names of project access tokens on arbitrary projects
https://hackerone.com/reports/1336059
https://gitlab.com/gitlab-org/gitlab/-/issues/340803
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39915.json