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CVE-2026-44005

vm2: Sandbox escape

Published: May 13, 2026Updated: May 14, 2026 Sources: CVE List NVD BDUCWE-94
NVD MITRE
10.0CVSSCRITICAL
EPSS Score
0.6%
Top 57.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

vm2 is an open source vm/sandbox for Node.js. From 3.9.6 to 3.10.5, vm2's bridge exposes mutable proxies for real host-realm intrinsic prototypes and then forwards sandbox writes into the underlying host objects with otherReflectSet() and otherReflectDefineProperty(), which lets attacker-controlled JavaScript running in a default VM or inherited NodeVM mutate shared host Object.prototype, Array.prototype, and Function.prototype from inside the sandbox This vulnerability is fixed in 3.11.0.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:NI: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:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94CWE-1321

Affected Products

vm2patriksimek
Library
OSS Libraries / npm
vm2vm2 project
Library
OSS Libraries / npm
vm2Node.js FoundationOSS Libraries
patriksimekoss-projectOSS Libraries
vm2 projectoss-projectOSS Librariesaka vm2
node.js foundationoss-projectUSOSS Librariesaka nodejs foundation, node foundation

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/patriksimek/vm2/security/advisories/GHSA-vwrp-x96c-mhwq
github.com

Timeline

Published
May 13, 2026
Last Updated
May 14, 2026

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