CVE-2026-44007

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.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: CRITICAL
CVSS score: 9.1 / 10
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Effective score: 9.1 / 10 CRITICAL source: CNA overview
CWE(s): CWE-284
Reserved: 2026-05-04
Published: 2026-05-13 19:33 UTC
Last updated: 2026-05-15 11:58 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/44xxx/CVE-2026-44007.json
Linked Threat: CVE-2026-44007 — vm2: nesting: true bypasses require: false, allowing sandbox escape to arbitrary OS command execution

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-05-13 18:16:17 UTC
NVD last modified: 2026-05-14 15:18:26 UTC
NVD CVSS v3.1: 9.1 / 10 CRITICAL source: security-advisories@github.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Exploitability subscore: 2.3 / 10
Impact subscore: 6.0 / 10
EPSS score: 0.0005 (probability of exploitation in next 30 days)
EPSS percentile: 14.77% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-30077
Assigner: GitHub_M
Published: May 13, 2026, 5:33:19 PM
Updated: May 15, 2026, 9:58:32 AM
EUVD base score (CVSS 3.1): 9.1 / 10
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EUVD-reported EPSS: 0.0500
Vendors: patriksimek
Products: vm2 (< 3.11.1)
Aliases: GHSA-8hg8-63c5-gwmx

ENISA 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.

EUVD references (1)

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

Affected products (1)

Vendor	Product	Versions	Platforms
patriksimek	vm2	`< 3.11.1` (affected)	—

Affected products — CPE 2.3 (1) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

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

MITRE references (1) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

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

Web references (5)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

http://www.openwall.com/lists/oss-security/2026/05/05/11 tenable:www.openwall.com
https://nvd.nist.gov/vuln/detail/CVE-2026-44007 tenable:nvd.nist.gov
https://thehackernews.com/2026/05/vm2-nodejs-library-vulnerabilities.html tenable:thehackernews.com
https://www.cve.org/CVERecord?id=CVE-2026-44007 tenable:www.cve.org
https://www.first.org/epss/ tenable:www.first.org

NVD-tagged references (2)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

http://www.openwall.com/lists/oss-security/2026/05/05/11 af854a3a-2127-422b-91ae-364da2661108 Mailing ListThird Party Advisory
https://github.com/patriksimek/vm2/security/advisories/GHSA-8hg8-63c5-gwmx security-advisories@github.com ExploitVendor Advisory

Indicators (1)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
domain	`node.js`	no local data	2026-05-18 21:18 UTC

Remediations (17)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Oracle Critical Patch Update, April 2026 Security Update Review

web:blog.qualys.com

Oracle released its second quarterly edition of this year's Critical Patch Update. The update received patches for 481 security vulnerabilities.

2026-05-22 17:21 UTC
Microsoft Releases Emergency .NET 10.0.7 Update to Fix Critical ...

web:cyberpress.org

The urgent patch highlights the severity of the issue, as out-of-band releases are reserved for actively exploitable or high-risk flaws requiring immediate attention. Vulnerability Overview The flaw, tracked as CVE - 2026 -40372, was introduced as a regression during the .NET 10.0.6 Patch Tuesday update.

2026-05-22 17:21 UTC
Patch Tuesday, April 2026 Edition - Krebs on Security

web:krebsonsecurity.com

For a clickable, per- patch breakdown, check out the SANS Internet Storm Center Patch Tuesday roundup. Running into problems applying any of these updates?

2026-05-22 17:21 UTC
Nvd - Cve-2026-44277

web:nvd.nist.gov

Official websites use .gov A .gov website belongs to an official government organization in the United States.

2026-05-22 17:21 UTC
Microsoft April 2026 Patch Tuesday fixes 167 flaws, 2 zero-days

web:www.bleepingcomputer.com

Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.

2026-05-22 17:21 UTC
Critical Patches Issued for Microsoft Products, April 14, 2026

web:www.cisecurity.org

<p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...

2026-05-22 17:21 UTC
April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike

web:www.crowdstrike.com

Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

2026-05-22 17:21 UTC
Node.js Fixes CVE-2026-21637 And Critical Flaws Now

web:thecyberexpress.com

Node.js patches CVE - 2026 -21637 and other flaws across versions 20.x-25.x, fixing DoS risks, HTTP bugs, and permission model issues.

2026-05-22 03:55 UTC
CVE-2026-44007 - Tenable

web:www.tenable.com

An improper access control vulnerability in the vm2 Node.js library that allows sandbox escape and execution of arbitrary operating system commands on the underlying host. (Affects versions <= 3.11.0, patched in 3.11.1)

2026-05-22 03:55 UTC
Windows 11 April 2026 Update tested: What's new, improved and fixed

web:www.windowslatest.com

Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

2026-05-22 03:55 UTC
February's Patch Tuesday release fixes 59 flaws ... - Computerworld

web:www.computerworld.com

Each month, the team at Readiness analyzes the latest Patch Tuesday updates from Microsoft and provides detailed, actionable testing guidance. The company's Patch Tuesday release for February ...

2026-05-22 03:55 UTC
CVE-2026-44007 - Security Alert | The Fastest Security Intelligence Feed

web:zerodaysignal.com

Recommended Actions 1.Inventory affected systems running vm2< 3.11.1 2.Review patch availability from patriksimek 3.Implement temporary mitigations if patches unavailable 4.Update incident response procedures 🔔 Get Alerted on patriksimek CVEs

2026-05-22 03:55 UTC
Microsoft Patch Tuesday May 2026 - 120 Vulnerabilities Fixed, Including ...

web:cybersecuritynews.com

Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.

2026-05-22 03:55 UTC
2 New Microsoft Defender Zero-Days Exploited—Patch Now ... - Forbes

web:www.forbes.com

Microsoft has confirmed an emergency security update as CISA warns that two new Defender zero-days are being exploited by attackers.

2026-05-22 03:55 UTC
Nvd - Cve-2026-44007

web:nvd.nist.gov

An official website of the United States government Here's how you know

2026-05-22 03:55 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-05-22 03:55 UTC
Security Update Guide - Loading - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-22 03:55 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-44007.json.

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