CVE-2026-44007 CRITICAL

CVE-2026-44007: vm2: nesting: true bypasses require: false, allowing sandbox escape to arbitrary OS command execution

Vendor Patriksimek
Product vm2
Weakness CWE-284
Published May 13, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 13, 2026 CVE published
June 30, 2026 Record updated