critical vulnerability

vm2: Sandboxed code can read and write host-realm memory via Node's shared Buffer pool

Fix availableCritical · CVSS 10EPSS 0.48%

Published Oct 5, 2026 · updated Oct 5, 2026

What to do

Upgrade to a fixed version: vm2 3.11.7.
Redeploy and restart long-running processes so they load the fixed code.

Affected packages

npmvm2

Vulnerable versions: <= 3.11.6
Fixed in: 3.11.7

Check your project: npm ls vm2 --all

Is vm2@3.11.7 safe to install? See the upgrade verdict →

Sources

GitHub Advisory GHSA-fcqc-726x-5wfc
NVD CVE-2026-92947

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor · CWE-653 Improper Isolation or Compartmentalization · CWE-668 Exposure of Resource to Wrong Sphere

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