How broadly exploitable is this vulnerability?

Exploitability depends on who can influence EnvoyExtensionPolicy Lua scripts. In environments where only highly trusted operators can define or change these scripts, exposure is more limited; in multi-tenant or less restricted environments, the risk extends to any party who can introduce or modify Lua extensions.

What level of access does an attacker need to exploit this issue?

An attacker needs the ability to author, alter, or cause execution of Lua scripts within EnvoyExtensionPolicy, either directly via control-plane APIs or indirectly through a compromised administrative workflow or CI/CD pipeline.

What is the safest general fix pattern?

The safest pattern is to harden the extension model by sandboxing Lua execution, preventing scripts from reaching control-plane credentials or other sensitive secrets, and strictly limiting who can deploy or modify extension policies.

Severity:

HIGH RISK

(8.8)

Lua Script Code Injection (CWE-94) in Envoy Gateway EnvoyExtensionPolicy

CVE-2026-22771

Published:

Jan 12, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Code Injection / Script Abuse

CWE:

CWE-94

Impact:

Credential and Secret Compromise via Script-Based Code Injection

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Code Injection / Script Abuse

CWE:

CWE-94

Impact:

Credential and Secret Compromise via Script-Based Code Injection

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

START 14 DAYS FREE TRIAL

BOOK A DEMO

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Lua Script Code Injection (CWE-94) in Envoy Gateway EnvoyExtensionPolicy

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare