Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status
https://hackerone.com/reports/1117768
https://gitlab.com/gitlab-org/gitlab/-/issues/326948
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22256.json