patriksimek vm2 up to 3.11.3 Configuration dynamically-managed code resources

Summaryinfo

A vulnerability labeled as critical has been found in patriksimek vm2 up to 3.11.3. Affected by this vulnerability is an unknown functionality of the component Configuration Handler. The manipulation results in dynamically-managed code resources. This vulnerability is known as CVE-2026-47137. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in patriksimek vm2 up to 3.11.3. It has been classified as critical. Affected is an unknown part of the component Configuration Handler. The manipulation with an unknown input leads to a dynamically-managed code resources vulnerability. CWE is classifying the issue as CWE-913. The product does not properly restrict reading from or writing to dynamically-managed code resources such as variables, objects, classes, attributes, functions, or executable instructions or statements. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-47137 since 05/18/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Upgrading to version 3.11.4 eliminates this vulnerability.

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Productinfo

Vendor

• patriksimek

Name

• vm2

Version

• 3.11.0
• 3.11.1
• 3.11.2
• 3.11.3

Website

• Product: https://github.com/patriksimek/vm2/

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