cvedb.io
CVE-2026-43999
CRITICAL · CVSS 9.9
EPSS exploitation probability: 0%
Published 2026-05-13T18:16:16.450 · Last modified 2026-06-30T03:19:48.937

Summary

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, NodeVM's builtin allowlist can be bypassed when the module builtin is allowed (including via the '*' wildcard). The module builtin exposes Node's Module._load(), which loads any module by name directly in the host context, completely bypassing vm2's builtin restriction. This allows sandboxed code to load excluded builtins like child_process and achieve remote code execution. This vulnerability is fixed in 3.11.0.

Affected products

vm2_project — vm2

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.