CVE-2026-26956

vm2: WASM Sandbox Escape (Node 25 only)

Published May 4, 2026 CVSS 3.1 · 9.8 Critical EPSS 1.1% KEV · Not listed
Description
vm2 is an open source vm/sandbox for Node.js. In version 3.10.4, vm2 is vulnerable to full sandbox escape with arbitrary code execution. Attacker code inside VM.run() obtains host process object and runs host commands with zero host cooperation. This issue has been patched in version 3.10.5.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-ffh4-j6h5-pg66 VM2 Has a WASM Sandbox Escape
History
Type Values Removed Values Added
First Time appeared Vm2 Project
Vm2 Project vm2
CPEs cpe:2.3:a:vm2_project:vm2:*:*:*:*:*:node.js:*:*
Vendors & Products Vm2 Project
Vm2 Project vm2
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Patriksimek
Patriksimek vm2
Vendors & Products Patriksimek
Patriksimek vm2
Type Values Removed Values Added
Description vm2 is an open source vm/sandbox for Node.js. In version 3.10.4, vm2 is vulnerable to full sandbox escape with arbitrary code execution. Attacker code inside VM.run() obtains host process object and runs host commands with zero host cooperation. This issue has been patched in version 3.10.5.
Title vm2: WASM Sandbox Escape (Node 25 only)
Weaknesses CWE-693
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 15, 2026, 1:14 AM
Reserved
Feb 16, 2026, 10:20 PM
Status
Modified
Published
May 4, 2026, 5:16 PM
Modified
Oct 26, 2026, 7:10 PM
Severity
Critical
Public date
May 4, 2026, 4:37 PM