CVE-2026-44007 | vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.… | CVSS 9.9 CRITICAL

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.

Metadata

CVE ID: CVE-2026-44007
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-05-04 21:24 UTC
Published: 2026-05-13 17:33 UTC
Last updated: 2026-06-30 03:17 UTC
Primary CWE: CWE-284
CWE-284: Improper Access Control
Vendor / Product: patriksimek / vm2
Sources: cve.org · NVD

Severity & Metrics

9.9 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
patriksimek	vm2	—	< 3.11.1

Weakness (CWE)

CWE	Source	Description
CWE-284	cna	CWE-284: Improper Access Control
CWE-1100	adp	Insufficient Isolation of System-Dependent Functions

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.9	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
9.1	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References (1)

https://github.com/patriksimek/vm2/security/advisories/GHSA-8hg8-63c5-gwmx https://github.com/patriksimek/vm2/security/advisories/GHSA-8hg8-63c5-gwmx