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High severityOSV Advisory· Published Jan 12, 2026· Updated Jan 12, 2026

Envoy Extension Policy lua scripts injection causes arbitrary command execution

CVE-2026-22771

Description

Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.5.7 and 1.6.2, EnvoyExtensionPolicy Lua scripts executed by Envoy proxy can be used to leak the proxy's credentials. These credentials can then be used to communicate with the control plane and gain access to all secrets that are used by Envoy proxy, e.g. TLS private keys and credentials used for downstream and upstream communication. This vulnerability is fixed in 1.5.7 and 1.6.2.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
github.com/envoyproxy/gatewayGo
>= 1.6.0-rc.0, < 1.6.21.6.2
github.com/envoyproxy/gatewayGo
< 1.5.71.5.7

Affected products

12

Patches

Vulnerability mechanics

References

3

News mentions

0

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