CVE-2026-44009 — 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-2026-44009CRITICAL

patriksimek vm2 — vm2: Sandbox Breakout Through Null Proto Exception

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .0081   54.1     —

AFFECTED
  Product  Versions    Fixed
  vm2      < 3.11.2 –  —

TIMELINE
  May 4   Reserved by GitHub_M
  May 13  Published (CNA: GitHub_M)
  Aug 6   EXPLOIT PUBLISHED — CVE-2026-44009 (patriksimek vm2). Public exploit reference added.

CWE-668, CWE-653 · CNA: GitHub_M · CVSS v3.1 · 5 references · NVD status: Modified

Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, This vulnerability is fixed in 3.11.2.

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-2026-44009 (patriksimek vm2). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
patriksimek	vm2	—	< 3.11.2	—

Weaknesses

CWE-668 · CWE-653

References (5)

Authoritative record: CVE-2026-44009 at cve.org

Vendors: patriksimek

Weaknesses: CWE-668 · CWE-653

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-44009 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.