Critical severity · published Jun 12, 2026
CVE-2026-47140
vm2: NodeVM builtin denylist bypass via process and inspector/promises allows host code execution
10.0
CVSS
1%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VM
vm2 · patriksimek
< 3.11.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47140
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47140
github.com
https://github.com/patriksimek/vm2/commit/a1ed47a98d1cc36cb48c0d566d55889688e0b59b
github.com
https://github.com/patriksimek/vm2/releases/tag/v3.11.4
github.com
https://github.com/patriksimek/vm2/security/advisories/GHSA-rp36-8xq3-r6c4
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