VULNERABILITY INTELLIGENCE

CVE-2026-44007

CVSS score9.1 CRITICAL
EPSS probability0.96%
CISA KEVNot currently listed
Published2026-05-13
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.1, when a NodeVM is created with nesting: true, sandbox code can unconditionally require('vm2') regardless of the outer VM's require configuration — including require: false. With access to vm2, the sandbox constructs a new inner NodeVM with its own unrestricted require settings and executes arbitrary OS commands on the host. Any application that runs untrusted code inside a NodeVM with nesting: true is fully compromised. This vulnerability is fixed in 3.11.1.

Weakness classification

  • security-advisories@github.com: CWE-284
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-1100

Primary references