Provide references for CVE-2021-39917.
Where can I find more information about CVE-2021-39917?
References are available at: https://gitlab.com/gitlab-org/gitlab/-/issues/338486, https://hackerone.com/reports/1277918, https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39917.json.