---
title: "CVE-2026-92944: vm2 - Remote Code Execution"
description: "vm2 3.10.2 through 3.11.6 contains a sandbox escape vulnerability caused by a stale PromiseThenLookupChain protector in V8 14.6 affecting Promise.prototype.finally(), letting attackers execute arbitrary code by exploiting async functions with attacker-controlled Symbol.species, exploit requires Node.js 26 environment."
url: https://panop.io/threat-heartbeat/CVE-2026-92944/
---

# CVE-2026-92944 vm2 - Remote Code Execution

vm2 3.10.2 through 3.11.6 contains a sandbox escape vulnerability caused by a stale PromiseThenLookupChain protector in V8 14.6 affecting Promise.prototype.finally(), letting attackers execute arbitrary code by exploiting async functions with attacker-controlled Symbol.species, exploit requires Node.js 26 environment.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

EPSS

0.84% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-92944)

## Details

Type

Remote Code Execution

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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

Update to a version later than 3.11.6 or the latest available version.

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-2026-92944](https://nvd.nist.gov/vuln/detail/CVE-2026-92944)
- [https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bd](https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bd)
- [https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774e](https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774e)
- [https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v](https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v)
- [https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector](https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector)

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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

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