Provide references for CVE-2021-21421.
Where can I find more information about CVE-2021-21421?
References are available at: https://github.com/creharmony/node-etsy-client/security/advisories/GHSA-xw22-wv29-3299, https://github.com/creharmony/node-etsy-client/commit/b4beb8ef080366c1a87dbf9e163051a446acaa7d.