cvedb.io
CVE-2021-43826
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2022-02-22T23:15:10.957 · Last modified 2026-06-17T04:11:31.247

Summary

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 no workarounds for this issue. Users are advised to upgrade.

Affected products

envoyproxy — envoy

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.