Protection Mechanism Failure Affecting vm2 package, versions >=3.10.1 <3.11.7
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-VM2-20043663
- published22 Sept 2026
- disclosed17 Sept 2026
- creditthesmartshadow, zolbooo
Introduced: 17 Sep 2026
NewCVE-2026-92956 (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 via the WebAssembly.compileStreaming and WebAssembly.instantiateStreaming functions. An attacker can gain access to the host process object and execute arbitrary code with host-level privileges by manipulating Symbol.species through Promise.prototype.finally, allowing traversal from a host error constructor to the host Function constructor. This enables access to sensitive host modules and capabilities in the context of the process running the sandbox. This is only exploitable if running on Node.js 26 with the default new VM() configuration.