Incomplete List of Disallowed Inputs Affecting vm2 package, versions <3.11.4
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-VM2-17111172
- published31 May 2026
- disclosed29 May 2026
- creditspbavarva, VladimirEliTokarev
Introduced: 29 May 2026
NewCVE-2026-47140 (opens in a new tab)How to fix?
Upgrade vm2 to version 3.11.4 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 Incomplete List of Disallowed Inputs via the builtin allowlist handling in lib/builtin.js. An attacker can reach host code by requiring process and calling getBuiltinModule('child_process'), or by requiring inspector/promises and using Session().post('Runtime.evaluate', ...) to execute JavaScript in the host realm. This lets sandboxed code bypass the intended built-in restrictions and obtain host process execution capabilities, leading to arbitrary command execution and full compromise of the sandboxed application.