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Vulnerabilities CVE-2026-47698

CVE-2026-47698

Critical
Open
TLP:CLEAR

vm2: Sandbox Breakout Using Dangerous Host Proto Mutators

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Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.6, lib/bridge.js and lib/setup-sandbox.js fail to block stacked indirection through Function.prototype.call around dangerous host prototype getter and setter mutators, allowing sandbox code to sever a host intrinsic's prototype chain and reach e.constructor.constructor for arbitrary host command execution. This issue is fixed in version 3.11.6.

Details

CVSS Score
9.8
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Confidence
90%
Published
Aug 17, 2026
Last Modified
Aug 17, 2026
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