Is this vulnerability remotely exploitable?

It can be, if a remote user can supply or control JavaScript that your application runs inside vm2. For example, online code execution services, plugin systems, or user-configurable scripting engines may expose a remote attack surface.

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

The attacker must be able to execute or influence code within the vm2 sandbox (e.g., by submitting scripts, templates, or rules). No direct shell or file system access is required if the application already executes attacker-controlled code inside vm2.

What is the safest general fix pattern?

Ensure that all Promise-related callbacks (including those from async functions) are subject to the same sanitization and wrapping as other sandboxed operations, and avoid relying solely on language-level mechanisms for security boundaries. Combine robust sandbox library configurations with OS-level isolation where feasible.

Severity:

CRITICAL RISK

(9.8)

Sandbox Escape via Unsanitized Promise Callbacks (CWE-94) in vm2 for Node.js

CVE-2026-22709

Published:

Jan 26, 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-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Code Injection / Sandbox Escape

CWE:

CWE-94;CWE-693;CWE-913

Impact:

Remote Code Execution / Sandbox Breakout

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Code Injection / Sandbox Escape

CWE:

CWE-94;CWE-693;CWE-913

Impact:

Remote Code Execution / Sandbox Breakout

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Sandbox Escape via Unsanitized Promise Callbacks (CWE-94) in vm2 for Node.js

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

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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