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

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
patriksimek / vm2	affected < 3.11.1

CWE

CWE-284

References

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

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/05/05/11

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was found in vm2 (before 3.11.1). With nesting: true, sandbox code can require('vm2') regardless of outer require settings (including require: false), spawn an inner NodeVM with unrestricted require, and execute arbitrary OS commands on the host. Fixed in 3.11.1.