An Improper Access Control vulnerability in the GraphQL API in all versions of GitLab CE/EE starting from 13.1 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows a Merge Request creator to resolve discussions and apply suggestions after a project owner has locked the Merge Request
https://hackerone.com/reports/1063420
https://gitlab.com/gitlab-org/gitlab/-/issues/295298
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39904.json