---
id: CVE-2026-44001
title: vm2 is an open source vm/sandbox for Node.js
summary: >-
  vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox
  escape vulnerability in vm2 v3.10.5 allows any sandboxed code to crash the
  host Node.js process via a single Promise constructor that triggers an
  unhandled rejectio…
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H'
cwe:
  - CWE-248
  - CWE-248
vendor: vm2_project
product: vm2
affected:
  - vm2 < 3.11.0
patched:
  - vm2 3.11.0
published: '2026-05-13'
updated: '2026-08-06'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-44001'
references:
  - url: 'https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh'
    label: security-advisories@github.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:50850'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://access.redhat.com/security/cve/CVE-2026-44001'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2477208'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://github.com/patriksimek/vm2/security/advisories/GHSA-hw58-p9xv-2mjh'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44001.json
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
tags:
  - nvd
epss: 0.00665
epssPercentile: 0.49679
ingestedAt: '2026-08-06T13:59:37.768Z'
---

## Overview

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, a sandbox escape vulnerability in vm2 v3.10.5 allows any sandboxed code to crash the host Node.js process via a single Promise constructor that triggers an unhandled rejection propagating to the host. The fix for CVE-2026-22709 (v3.10.2) only sanitized the onRejected callback in .then() and .catch() overrides and did not address the executor-to-unhandledRejection path. This vulnerability is fixed in 3.11.0.

## Affected

- `vm2 < 3.11.0`

## Remediation

Upgrade past the affected range:

- `vm2 3.11.0`