Cloudanix VulnDB

CVE-2026-44005

Critical · 10.0

CVSS

10.0

EPSS

0.8%

Published

May 13, 2026

CISA due date

—

The record

vm2 is an open source vm/sandbox for Node.js. From 3.9.6 to 3.10.5, vm2's bridge exposes mutable proxies for real host-realm intrinsic prototypes and then forwards sandbox writes into the underlying host objects with otherReflectSet() and otherReflectDefineProperty(), which lets attacker-controlled JavaScript running in a default VM or inherited NodeVM mutate shared host Object.prototype, Array.prototype, and Function.prototype from inside the sandbox This vulnerability is fixed in 3.11.0.

Affected packages

Ecosystem Package Introduced Fixed
npm vm2 3.9.6 3.11.0

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