CVE-2026-47210

Published: Jun 12, 2026Modified: Jun 12, 2026Deferred

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: security-advisories@github.com (Secondary)

Description

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, a sandbox escape vulnerability in vm2 allows arbitrary code execution in the host process when untrusted code is executed with async support on runtimes exposing WebAssembly JSPI (WebAssembly.promising / WebAssembly.Suspending). In the tested configuration, a JSPI-backed Promise can reach Promise.prototype.finally() in a way that bypasses the expected Promise-species hardening and exposes a host-originated rejection object to attacker-controlled species logic, breaking the sandbox boundary. This issue has been patched in version 3.11.4.

Related CWEs

CWE-913

Improper Control of Dynamically-Managed Code Resources

The product does not properly restrict reading from or writing to dynamically-managed code resources such as variables, objects, classes, attributes, functions, or executable instructions or statements.

References (4)

https://github.com/patriksimek/vm2/commit/6915fa4d9bcebd47b9a4f39a1adc1aa94ef6ffc6

Source: security-advisories@github.com

https://github.com/patriksimek/vm2/releases/tag/v3.11.4

Source: security-advisories@github.com

https://github.com/patriksimek/vm2/security/advisories/GHSA-6j2x-vhqr-qr7q

Source: security-advisories@github.com

https://github.com/patriksimek/vm2/security/advisories/GHSA-6j2x-vhqr-qr7q

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

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