Servers and applications
CVE-2021-43826
Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions of Envoy a crash occurs when configured for :ref:`upstream tunneling <envoy_v3_api_field_extensions.filters.network.tcp_proxy.v3.TcpProxy.tunneling_config>` and the downstream connection disconnects while the the upstream connection or http/2 stream is still being established. There are…
- Severity
- High 7.5
- Published
- 22 Feb 2022
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Fixed in
- 1.18.6, 1.19.3, 1.20.2, 1.21.1
- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
EnvoyServers and applications · cpe:a:envoyproxy:envoy |
|