CVE-2026-44007 Details
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.
A critical sandbox escape vulnerability has been identified in vm2 versions prior to 3.11.1. When a NodeVM is created with nesting enabled, sandboxed code can bypass require restrictions and access the vm2 module. This allows the execution of arbitrary operating system commands on the host. The vulnerability arises from the interaction between the nesting option and the module resolver, where require restrictions can be ignored, leading to a complete compromise of the application running untrusted code in this configuration.
Users are advised to update vm2 to version 3.11.1 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2026:50850 | redhat-SADP | |
| https://access.redhat.com/security/cve/CVE-2026-44007 | redhat-SADP | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2477198 | redhat-SADP | |
| https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44007.json | redhat-SADP | |
| http://www.openwall.com/lists/oss-security/2026/05/05/11 | CVE | Mailing ListThird Party Advisory |
| https://github.com/patriksimek/vm2/security/advisories/GHSA-8hg8-63c5-gwmx | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1100 | Insufficient Isolation of System-Dependent Functions | redhat-SADP |
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| vm2 project vm2 | < 3.11.1 |
CPE
Remediation
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Change History
12 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 7, 2026 | CVE Modified | redhat-SADP |
| Sep 4, 2026 | CVE Modified | [email protected] |
| Sep 4, 2026 | CVE Modified | CVE |
| Sep 4, 2026 | CVE Modified | redhat-SADP |
| Aug 6, 2026 | CVE Modified | redhat-SADP |
| Jul 15, 2026 | CVE Modified | redhat-SADP |
| Jun 30, 2026 | CVE Modified | redhat-SADP |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| May 14, 2026 | Initial Analysis | [email protected] |
| May 13, 2026 | CVE Modified | CVE |
| May 13, 2026 | New CVE Received | [email protected] |