VYPR
Critical severityNVD Advisory· Published Jan 26, 2026· Updated Jan 27, 2026

vm2 has a Sandbox Escape

CVE-2026-22709

Description

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.

AI Insight

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
vm2npm
< 3.10.23.10.2

Affected products

2

Patches

Vulnerability mechanics

References

5

News mentions

2