Vulnerability Description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, the new method neutralizeArraySpeciesBatch works with objects from the other side but can call into this side via getter on the array prototype exposing objects of the wrong side into the sandbox. This can be used to get host objects and get the host Function object. This allows attackers to write code which can escape from the VM2 sandbox and execute arbitrary commands on the host system. This vulnerability is fixed in 3.11.2.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vm2 Project | Vm2 | < 3.11.2 |
Related Weaknesses (CWE)
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-9qj6-qjgg-37qqExploitVendor Advisory
FAQ
What is CVE-2026-44008?
CVE-2026-44008 is a vulnerability with a CVSS score of 9.8 (CRITICAL). vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.2, the new method neutralizeArraySpeciesBatch works with objects from the other side but can call into this side via getter on the array pro...
How severe is CVE-2026-44008?
CVE-2026-44008 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-44008?
Check the references section above for vendor advisories and patch information. Affected products include: Vm2 Project Vm2.