Vulnerability Description
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's code transformer has a performance optimization that skips AST analysis when the code does not contain catch, import, or async keywords. This fast-path bypass allows sandboxed code to directly access the internal VM2_INTERNAL_STATE_DO_NOT_USE_OR_PROGRAM_WILL_FAIL variable, which exposes internal security functions (handleException, wrapWith, import). This vulnerability is fixed in 3.11.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vm2 Project | Vm2 | < 3.11.0 |
Related Weaknesses (CWE)
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-wp5r-2gw5-m7q7ExploitMitigationVendor Advisory
- https://github.com/patriksimek/vm2/security/advisories/GHSA-wp5r-2gw5-m7q7ExploitMitigationVendor Advisory
FAQ
What is CVE-2026-44003?
CVE-2026-44003 is a vulnerability with a CVSS score of 5.3 (MEDIUM). vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's code transformer has a performance optimization that skips AST analysis when the code does not contain catch, import, or async keyw...
How severe is CVE-2026-44003?
CVE-2026-44003 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44003?
Check the references section above for vendor advisories and patch information. Affected products include: Vm2 Project Vm2.