CVE-2026-47698

CVE-2026-47698 · vm2: Sandbox Breakout Using Dangerous Host Proto Mutators

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 9.8 · Critical · EPSS 1.0% · Fix available

Published: 2026-08-17T20:53:09.218Z
Updated: 2026-08-19T03:56:02.855Z

Stack: node

Affected products and versions

vm2
Versions
- < 3.11.6: Affected
No fix published
vm2 npm
Affected ranges
- SEMVER: < 3.11.6
Update to 3.11.6

Original sources

https://github.com/patriksimek/vm2/security/advisories/GHSA-cfcw-xp6x-25gj
https://github.com/patriksimek/vm2/commit/a85acb61f81402c6eabf32760aa11272af6d0f9e
https://github.com/patriksimek/vm2/releases/tag/3.11.6
https://nvd.nist.gov/vuln/detail/CVE-2026-47698

Check your server →

CVE-2026-47698 · vm2: Sandbox Breakout Using Dangerous Host Proto Mutators

Affected products and versions

vm2

vm2 npm

Original sources