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Vulnerability record · CVE-2026-44007 · published 13 May 2026

CVE-2026-44007: Vm2 project vm2 improper access control vulnerability

Vm2 Project · Vm2

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.

9.1 CVSS 3.1 Critical EPSS 0.61% · top 52.8% CWE-284 · Improper access controlCWE-1100 · CWE-1100
9.1CVSS 3.1 base score
0.61%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 1 tagged exploit
7 Sep 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/patriksimek/vm2/security/advisories/GHSA-8hg8-63c5-gwmx ExploitVendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/05/11 Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2026:50850
https://access.redhat.com/security/cve/CVE-2026-44007
https://bugzilla.redhat.com/show_bug.cgi?id=2477198
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44007.json

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-44007), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.