This is addressed in Envoy 1.11.1 (https://www.envoyproxy.io/docs/envoy/v1.11.1/intro/version_history https://www.envoyproxy.io/docs/envoy/v1.11.1/intro/version

This is addressed in Envoy 1.11.1 (https://www.envoyproxy.io/docs/envoy/v1.11.1/intro/version_history https://www.envoyproxy.io/docs/envoy/v1.11.1/intro/version_h...) and Ambassador 0.75 (https://blog.getambassador.io/multiple-http-2-vulnerabilities-in-envoy-proxy-59351babb3aa https://blog.getambassador.io/multiple-http-2-vulnerabilitie...).