Vulnerability Description
vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM blocks several dangerous Node.js builtins such as module, worker_threads, cluster, vm, repl, and inspector. However, the denylist misses process and inspector/promises. Both can be used from sandboxed code to reach host-side execution primitives. This allows sandboxed code to bypass the intended builtin restrictions and execute code in the host process. This issue has been patched in version 3.11.4.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/patriksimek/vm2/commit/a1ed47a98d1cc36cb48c0d566d55889688e0b5
- https://github.com/patriksimek/vm2/releases/tag/v3.11.4
- https://github.com/patriksimek/vm2/security/advisories/GHSA-rp36-8xq3-r6c4
- https://github.com/patriksimek/vm2/security/advisories/GHSA-rp36-8xq3-r6c4
FAQ
What is CVE-2026-47140?
CVE-2026-47140 is a vulnerability with a CVSS score of 10.0 (CRITICAL). vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM blocks several dangerous Node.js builtins such as module, worker_threads, cluster, vm, repl, and inspector. However, the d...
How severe is CVE-2026-47140?
CVE-2026-47140 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-47140?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.