---
id: CVE-2026-92935
title: vm2 is a sandbox for running untrusted Node.js code
summary: >-
  vm2 is a sandbox for running untrusted Node.js code. In versions >= 3.11.4 and
  <= 3.11.6, the NodeVM constructor computes `hasRealRequireConfig` with `typeof
  requireOpts === 'object' && requireOpts !== null`, so an array-shaped
  `require`…
severity: critical
cvss: 9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-913
vendor: patriksimek
product: vm2
affected:
  - vm2 >= 3.11.4 < 3.11.7
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T20:18:59.093'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92935'
references:
  - url: >-
      https://github.com/patriksimek/vm2/commit/54b54b74a382577f0bcd0538c5bf99acdcd7f53b
    label: disclosure@vulncheck.com
  - url: 'https://github.com/patriksimek/vm2/security/advisories/GHSA-8hr7-r645-pc6w'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/vm2-nodevm-remote-code-execution-via-array-shaped-require
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-17T18:57:25.525605Z'
ingestedAt: '2026-09-17T14:19:30.983Z'
epss: 0.00673
epssPercentile: 0.49936
---

## Overview

vm2 is a sandbox for running untrusted Node.js code. In versions >= 3.11.4 and <= 3.11.6, the NodeVM constructor computes `hasRealRequireConfig` with `typeof requireOpts === 'object' && requireOpts !== null`, so an array-shaped `require` value (for example `require: []`) satisfies the guard that is meant to reject nesting without an explicit require configuration. `makeResolverFromLegacyOptions()` then destructures the array into undefined option fields and returns a resolver containing only `NESTING_OVERRIDE.vm2`. As a result, an attacker who can supply JavaScript executed by a NodeVM configured with truthy `nesting` and an array-shaped `require` (e.g. `new NodeVM({nesting: true, require: []})`) can require the host `vm2` module, create an inner NodeVM with an attacker-chosen builtin allowlist (such as `child_process`), and execute arbitrary commands with the privileges of the host Node.js process, escaping the sandbox. Outer builtin restrictions do not constrain the attacker-created inner NodeVM. This issue is fixed in vm2 3.11.7.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.