Provide references for CVE-2021-28682.
Where can I find more information about CVE-2021-28682?
References are available at: https://github.com/envoyproxy/envoy/releases, https://blog.envoyproxy.io, https://github.com/envoyproxy/envoy/blob/15e3b9dbcc9aaa9d391fa8033904aad1ea1ae70d/api/envoy/api/v2/cluster.proto#L36.