Provide references for CVE-2021-25981.
Where can I find more information about CVE-2021-25981?
References are available at: https://github.com/debiki/talkyard/commit/b0310df019887f3464895529c773bc7d85ddcf34, https://github.com/debiki/talkyard/commit/b0712915d8a22a20b09a129924e8a29c25ae5761, https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25981.