Provide references for CVE-2021-21306.
Where can I find more information about CVE-2021-21306?
References are available at: https://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96, https://github.com/markedjs/marked/issues/1927, https://github.com/markedjs/marked/pull/1864, https://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccd, https://www.npmjs.com/package/marked.