CVE-2026-44007 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-44007CRITICAL

patriksimek vm2 — vm2: nesting: true bypasses require: false, allowing sandbox escape to arbitrary OS command execution

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   H   N  C  H  H  H    9.1   .0096   58.8     —

AFFECTED
  Product  Versions    Fixed
  vm2      < 3.11.1 –  —

TIMELINE
  May 4   Reserved by GitHub_M
  May 13  Published (CNA: GitHub_M)
  Aug 6   EXPLOIT PUBLISHED — CVE-2026-44007 (patriksimek vm2). Public exploit reference added.

CWE-284, CWE-1100 · CNA: GitHub_M · CVSS v3.1 · 6 references · NVD status: Modified

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 4, 2026	Reserved	Reserved by GitHub_M
May 13, 2026	Published	Published (CNA: GitHub_M)
August 6, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-44007 (patriksimek vm2). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
patriksimek	vm2	—	< 3.11.1	—

Weaknesses

CWE-284 · CWE-1100

References (6)

http://www.openwall.com/lists/oss-security/2026/05/05/11 [Mailing List, Third 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://github.com/patriksimek/vm2/security/advisories/GHSA-8hg8-63c5-gwmx [Exploit, Vendor Advisory]
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44007.json

Authoritative record: CVE-2026-44007 at cve.org

Vendors: patriksimek

Weaknesses: CWE-284 · CWE-1100

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-44007 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.