Provide references for CVE-2021-21423.
Where can I find more information about CVE-2021-21423?
References are available at: https://github.com/projen/projen/security/advisories/GHSA-gg2g-m5wc-vccq, https://github.com/projen/projen/commit/36030c6a4b1acd0054673322612e7c70e9446643, https://www.npmjs.com/package/projen.