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CVE-2026-22771— Envoy Extension Policy lua scripts injection causes arbitrary command execution

Quick assessment

Affected
envoyproxy gateway
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Envoy Gateway是Envoy Proxy开源的一个将 Envoy 代理作为独立或基于 Kubernetes 的应用程序网关。 Envoy Gateway 1.5.7之前版本和1.6.2之前版本存在代码注入漏洞，该漏洞源于EnvoyExtensionPolicy Lua脚本可能泄露代理凭据，进而可能导致攻击者访问控制平面并获取Envoy代理使用的所有密钥。

CVSS 8.8 · High EPSS 0.62% · P49

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 2

VendorProduct Version RangeStatus
envoyproxy gateway < 1.5.7 affected
>= 1.6.0-rc.0, < 1.6.2 affected
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I. Basic Information for CVE-2026-22771

Vulnerability Information
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Vulnerability Title
Envoy Extension Policy lua scripts injection causes arbitrary command execution
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Envoy Gateway 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Envoy Gateway是Envoy Proxy开源的一个将 Envoy 代理作为独立或基于 Kubernetes 的应用程序网关。 Envoy Gateway 1.5.7之前版本和1.6.2之前版本存在代码注入漏洞，该漏洞源于EnvoyExtensionPolicy Lua脚本可能泄露代理凭据，进而可能导致攻击者访问控制平面并获取Envoy代理使用的所有密钥。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
envoyproxy gateway < 1.5.7 -

II. Public POCs for CVE-2026-22771

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III. Intelligence Information for CVE-2026-22771

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IV. Related Vulnerabilities

Same product: gateway
Same vendor: envoyproxy
Same weakness: CWE-94

V. Comments for CVE-2026-22771

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