Improper Control of Dynamically-Managed Code Resources Affecting vm2 package, versions <3.12.1
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-VM2-20044271
- published22 Sept 2026
- disclosed18 Sept 2026
- creditUnknown
Introduced: 18 Sep 2026
NewCVE-2026-93606 (opens in a new tab)How to fix?
Upgrade vm2 to version 3.12.1 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 Improper Control of Dynamically-Managed Code Resources via the Promise @@species constructor lookup in lib/bridge.js. When sandbox code invokes then, catch, or finally on a host Promise, V8's SpeciesConstructor reads constructor[@@species] off the raw host promise with no bridge trap intercepting it, allowing a sandbox-controlled species to receive the raw host settlement and escape the sandbox boundary. An attacker can exploit this to achieve full host environment compromise, including arbitrary code execution with the privileges of the host process.