CVE-2026-22686
📋 TL;DR
CVE-2026-22686 is a critical sandbox escape vulnerability in enclave-vm that allows untrusted JavaScript code to execute arbitrary code in the host Node.js runtime. By intentionally triggering a host error and traversing the prototype chain, attackers can bypass the sandbox completely and access sensitive host resources. This affects all users running enclave-vm versions before 2.7.0.
💻 Affected Systems
- enclave-vm
📦 What is this software?
Enclave by Agentfront
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the host system - attackers can execute arbitrary code, access environment variables, filesystem, network resources, and potentially pivot to other systems.
Likely Case
Data exfiltration, credential theft, and unauthorized access to sensitive resources within the host environment.
If Mitigated
Limited impact if proper network segmentation and least privilege principles are implemented, but sandbox isolation is still completely broken.
🎯 Exploit Status
The exploit requires triggering a tool invocation error, which can be done intentionally by sandboxed code. Public advisory includes technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.7.0
Vendor Advisory: https://github.com/agentfront/enclave/security/advisories/GHSA-7qm7-455j-5p63
Restart Required: Yes
Instructions:
1. Update enclave-vm to version 2.7.0 or later using npm update enclave-vm. 2. Restart any services using enclave-vm. 3. Verify the update was successful.
🔧 Temporary Workarounds
Disable enclave-vm usage
allTemporarily disable or remove enclave-vm from production until patched
npm uninstall enclave-vm
🧯 If You Can't Patch
- Isolate affected systems in a restricted network segment with no sensitive data access
- Implement strict input validation and monitoring for any enclave-vm error conditions
🔍 How to Verify
Check if Vulnerable:
Check package.json or run npm list enclave-vm to see if version is below 2.7.0Check Version:
npm list enclave-vm | grep enclave-vmVerify Fix Applied:
Confirm enclave-vm version is 2.7.0 or higher using npm list enclave-vm📡 Detection & Monitoring
Log Indicators:
- Unusual error patterns from enclave-vm
- Multiple tool invocation failures
- Unexpected process spawns from Node.js runtime
Network Indicators:
- Unexpected outbound connections from Node.js processes
- Data exfiltration patterns
SIEM Query:
process.name:node AND (error_message:*enclave* OR process.args:*Function*constructor*)