Provide references for CVE-2021-31549.
Where can I find more information about CVE-2021-31549?
References are available at: https://phabricator.wikimedia.org/T274152, https://gerrit.wikimedia.org/r/q/I6063c02fa261c4cc0e6dbbb2db4e111eb85912c2, https://gerrit.wikimedia.org/r/q/I71a6d521bd12931ce60eec4d2dc35af19146000f.