Protection Mechanism Failure Affecting vm2 package, versions >=3.10.2 <3.11.7


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.84% (57th percentile)

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  • Snyk IDSNYK-JS-VM2-20043631
  • published22 Sept 2026
  • disclosed17 Sept 2026
  • creditYMs0ra

Introduced: 17 Sep 2026

NewCVE-2026-92944  (opens in a new tab)
CWE-693  (opens in a new tab)

How to fix?

Upgrade vm2 to version 3.11.7 or higher.

Overview

vm2 is a sandbox that can run untrusted code with whitelisted Node's built-in modules.

Affected versions of this package are vulnerable to Protection Mechanism Failure in the Promise.prototype.finally process. An attacker can execute arbitrary code by crafting an async function that returns a Promise with a malicious constructor using Symbol.species, which allows access to the host Function constructor and process object.

CVSS Base Scores

version 4.0
version 3.1