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TI-2026-32042 Aliases CVE-2026-43999GHSA-947f-4v7f-x2v8

vm2: NodeVM builtin allowlist bypass via `module` builtin's `Module._load` allows sandbox escape

Priority HIGH 76CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-863.

Summary

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, NodeVM's builtin allowlist can be bypassed when the module builtin is allowed (including via the '*' wildcard). The module builtin exposes Node's Module._load(), which loads any module by name directly in the host context, completely bypassing vm2's builtin restriction. This allows sandboxed code to load excluded builtins like child_process and achieve remote code execution. This vulnerability is fixed in 3.11.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00974 62nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed vm2 (patriksimek): 3.11.0vm2 (npm): 3.11.0Red Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
patriksimekvm2before 3.11.03.11.0Patch availableCNA
—vm2 (npm)3.10.5 to before 3.11.03.11.0Patch availableGHSA-947f-4v7f-x2v8
  • vm2 Vendorpatriksimek Affected before 3.11.0 Fixed in 3.11.0 Patch available CNA
  • vm2 (npm) Vendor— Affected 3.10.5 to before 3.11.0 Fixed in 3.11.0 Patch available GHSA-947f-4v7f-x2v8

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*before 3.11.0Vulnerablepatriksimek
  • cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:* Versions before 3.11.0 Vulnerable ·patriksimek

Remediation

  • Fix · CNA vm2 (patriksimek) Fixed in 3.11.0
  • Fix · GHSA-947f-4v7f-x2v8 vm2 (npm) Fixed in 3.11.0 Advisory →

Red Hat 1 advisory

  • RHSA-2026:50850 Released 2026-08-05 · Red Hat rating Important
    Red Hat Ansible Automation Platform 2.1 security update
    • Red Hat Ansible Automation Platform 2.1 registry.redhat.io/ansible-automation-platform/automation-portal

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ansible Automation Platform 2.1Fixed RHSA-2026:50850
Not affected: 1 product
  • Red Hat Developer Hub 1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-43999
  2. 2026-10-03 Alias added: GHSA-947f-4v7f-x2v8
  3. 2026-10-27 Affected versions changed · Red Hat

References

Exploit 1

Advisory 1

Other 1

  • TI-2023-14382 Sandbox Escape in vm2 CVSS 3.1CRITICAL 10.0
  • TI-2023-13478 vm2 Sandbox Escape vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2026-33200 vm2: Sandbox Breakout Using Async Generator CVSS 3.1CRITICAL 9.8
  • TI-2026-32052 vm2: Sandbox Breakout Through Null Proto Exception CVSS 3.1CRITICAL 9.8
  • TI-2026-32051 vm2 has sandbox breakout via `neutralizeArraySpeciesBatch` CVSS 3.1CRITICAL 9.8
  • TI-2026-32049 vm2: Sandbox Escape CVSS 3.1CRITICAL 10.0
See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences