CVE-2026-22709
📋 TL;DR
This vulnerability in vm2 sandbox for Node.js allows attackers to bypass Promise callback sanitization and escape the sandbox environment. Attackers can execute arbitrary code on the host system with the privileges of the Node.js process. Any application using vulnerable versions of vm2 is affected.
💻 Affected Systems
- vm2
📦 What is this software?
Vm2 by Vm2 Project
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the Node.js host system, allowing arbitrary code execution, data exfiltration, and lateral movement within the environment.
Likely Case
Remote code execution on the affected Node.js server, potentially leading to data theft, service disruption, or further system compromise.
If Mitigated
Limited impact if proper network segmentation and least privilege principles are implemented, though sandbox escape still poses significant risk.
🎯 Exploit Status
The vulnerability is well-documented with public proof-of-concept available in the advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.10.2
Vendor Advisory: https://github.com/patriksimek/vm2/security/advisories/GHSA-99p7-6v5w-7xg8
Restart Required: Yes
Instructions:
1. Update vm2 dependency to version 3.10.2 or later
2. Run 'npm update vm2' or 'yarn upgrade vm2'
3. Restart all Node.js applications using vm2
4. Verify the update with 'npm list vm2'
🔧 Temporary Workarounds
Disable vm2 usage
allTemporarily disable or remove vm2 sandbox functionality from applications
npm uninstall vm2
yarn remove vm2
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected systems
- Apply least privilege principles to Node.js processes running vm2
🔍 How to Verify
Check if Vulnerable:
Check package.json or run 'npm list vm2' to see if version is below 3.10.2Check Version:
npm list vm2 | grep vm2Verify Fix Applied:
Verify vm2 version is 3.10.2 or higher with 'npm list vm2'📡 Detection & Monitoring
Log Indicators:
- Unusual Node.js process behavior
- Sandbox escape attempts in application logs
- Unexpected child process creation
Network Indicators:
- Unexpected outbound connections from Node.js processes
- Command and control traffic patterns
SIEM Query:
process.name:node.exe AND (process.args:*vm2* OR process.args:*sandbox*)