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CRITICALCVE-2026-22709Published Modified CNA GitHub_M

CVE-2026-22709: vm2 has a Sandbox Escape

vm2 is an open source vm/sandbox for Node.js. In vm2 prior to version 3.10.2, `Promise.prototype.then` `Promise.prototype.catch` callback sanitization can be bypassed. This allows attackers to escape the sandbox and run arbitrary code. In lib/setup-sandbox.js, the callback function of `localPromise.prototype.then` is sanitized, but `globalPromise.prototype.then` is not sanitized. The return value of async functions is `globalPromise` object. Version 3.10.2 fixes the issue.

Metrics

CVSS v3.1
9.8
Severity
CRITICAL
Fixed in
Affected Products
1
Affected packages
  • patriksimek / vm2
    < 3.10.2
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2026-22709: vm2 has a Sandbox Escape | HarborGuard CVE