Provide references for CVE-2021-39874.
Where can I find more information about CVE-2021-39874?
References are available at: https://gitlab.com/gitlab-org/gitlab/-/issues/222527, https://hackerone.com/reports/898477, https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39874.json.