NetSight
critical10.0

CVE-2026-47140

NodeVM builtin denylist bypass via process and inspector/promises allows host code execution

Impact

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.

Affected packages

EcosystemPackageAffectedFixed in
npmvm2<= 3.11.33.11.4

Weakness classification

References