Provide references for CVE-2021-29509.
Where can I find more information about CVE-2021-29509?
References are available at: https://github.com/puma/puma/security/advisories/GHSA-q28m-8xjw-8vr5, https://gist.github.com/nateberkopec/4b3ea5676c0d70cbb37c82d54be25837, https://github.com/puma/puma/security/policy, https://rubygems.org/gems/puma, https://security.gentoo.org/glsa/202208-28, https://lists.debian.org/debian-lts-announce/2022/08/msg00015.html.