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CVE-2026-47137

10.0 · CRITICAL

vm2 is an open source vm/sandbox for Node.js.

Published Jun 12, 2026CWE-913EPSS 0.70%

Overview

CVE-2026-47137 is a critical-severity vulnerability. It was published on June 12, 2026 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the fix for GHSA-8hg8-63c5-gwmx (CVE-2023-37903) introduced a check in nodevm.js line 263 that blocks the combination nesting: true + require: false. However, the check uses strict equality (options.require === false), which is trivially bypassed by omitting the require option entirely. When require is not specified, options.require is undefined, not false. The strict equality check fails, so the security guard is skipped. Immediately after (line 280), the destructuring default require: requireOpts = false assigns requireOpts = false, producing the exact configuration the patch was designed to prevent. This issue has been patched in version 3.11.4.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/advisories/GHSA-g644-9gfx-q4q4GitHubgithub.com/patriksimek/vm2/commit/01a7552add345d5a6862623884e6b79a85bf0568GitHubgithub.com/patriksimek/vm2/commit/86ab819f202c3a8dad88cef5705f2e416c5188d7GitHubgithub.com/patriksimek/vm2/releases/tag/v3.11.4GitHubgithub.com/patriksimek/vm2/security/advisories/GHSA-m4wx-m65x-ghrr

How CyberStrike helps

Frequently asked questions

What is CVE-2026-47137?

CVE-2026-47137 is a critical-severity vulnerability. It was published on June 12, 2026 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2026-47137?

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-47137?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-47137?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-47137 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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