---
title: "CVE-2026-92956: vm2 - Sandbox Escape"
description: "vm2 3.10.1 through 3.11.6 contains a sandbox escape caused by manipulation of WebAssembly promise rejection and Symbol.species in default new VM() sandbox on Node.js 26, letting attackers gain host Node.js capabilities without special permissions, exploit requires Node.js 26 environment."
url: https://panop.io/threat-heartbeat/CVE-2026-92956/
---

# CVE-2026-92956 vm2 - Sandbox Escape

vm2 3.10.1 through 3.11.6 contains a sandbox escape caused by manipulation of WebAssembly promise rejection and Symbol.species in default new VM() sandbox on Node.js 26, letting attackers gain host Node.js capabilities without special permissions, exploit requires Node.js 26 environment.

CVSS base score 10.0 /10

Critical

CISA KEV

Not listed

Public exploit

Proof of concept available

EPSS

0.59% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-92956)

## Details

Type

Sandbox Escape

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Published

17 September 2026

Updated

15 October 2026

Weakness

[CWE-693](https://cwe.mitre.org/data/definitions/693.html)

## Vendor fix

Upgrade to version 3.11.7 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-92956](https://nvd.nist.gov/vuln/detail/CVE-2026-92956)
- [https://github.com/patriksimek/vm2/security/advisories/GHSA-wjwh-qqvp-g4p4](https://github.com/patriksimek/vm2/security/advisories/GHSA-wjwh-qqvp-g4p4)
- [https://www.vulncheck.com/advisories/vm2-3.10.1-through-3.11.6-sandbox-escape-via-webassembly-compilestreaming](https://www.vulncheck.com/advisories/vm2-3.10.1-through-3.11.6-sandbox-escape-via-webassembly-compilestreaming)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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