href=/v1.22/zh/news/releases/1.6.x/announcing-1.6.4>Istio 1.6.4</a> 或更高的版本。</li></ul><div><aside class="callout warning"><div class=type><svg class="large-icon"><use xlink:href="/v1.22/img/icons.svg#callout-warning"/></svg></div><div class=content>您必须采取以下附加步骤来防范 CVE-2020-8663。</div></aside></div><p>通过添加<a href=https://www.envoyproxy.io/docs/envoy/v1.14.3/configuration/operations/overload_manager/overload_manager#limiting-active-connections>下游连接</a>