CVE-2026-47137
CriticalCVSS 10.0Exploitation Probability (EPSS)
Low risk45th percentile — higher than 45% of all known CVEs
Summary
In versions prior to 3.11.4, the vm2 library contained a vulnerability that allowed bypassing security related to the 'nesting: true' and 'require: false' options. The strict equality check in the code did not function correctly, enabling unauthorized requirements.
Risk Assessment
Organizations using the vulnerable version may be exposed to unauthorized access to functions requiring security, potentially leading to serious security breaches.
Recommendation
It is recommended to update the vm2 library to version 3.11.4 or later to eliminate this vulnerability and restore proper security measures.
Original NVD description (English source)
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.