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CVE-2026-43997

CRITICAL CVSS: 10.0 Published: 2026-05-13 Modified: 2026-08-06

Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.

Affected Platforms

Vm2 Project Vm2

Weakness Type

CWE-94, CWE-653

References