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CVE-2026-47137

vm2: GHSA-8hg8-63c5-gwmx patch bypass: nesting:true without explicit require still allows full RCE

Published: Jun 12, 2026Updated: Jun 12, 2026 Sources: CVE List NVDCWE-913
10.0CRITICAL
NVD MITRE
EPSS Score
0.4%
Top 69.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
OpenVAS

Description

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the fix for GHSA-8hg8-63c5-gwmx (CVE-2023-37903) introduced a check in nodevm.js line 263 that blocks the combination nesting: true + require: false. However, the check uses strict equality (options.require === false), which is trivially bypassed by omitting the require option entirely. When require is not specified, options.require is undefined, not false. The strict equality check fails, so the security guard is skipped. Immediately after (line 280), the destructuring default require: requireOpts = false assigns requireOpts = false, producing the exact configuration the patch was designed to prevent. This issue has been patched in version 3.11.4.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-913

Affected Products

patriksimek
oss-project
vm2Library
OSS Libraries / npm

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Execution
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References

https://github.com/patriksimek/vm2/security/advisories/GHSA-m4wx-m65x-ghrr
github.com
https://github.com/patriksimek/vm2/commit/01a7552add345d5a6862623884e6b79a85bf0568
github.com
https://github.com/patriksimek/vm2/commit/86ab819f202c3a8dad88cef5705f2e416c5188d7
github.com
and 2 more references View all →

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