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CVE-2026-44005

vm2: Sandbox escape

Published: May 13, 2026Updated: Aug 6, 2026 Sources: CVE List NVD BDUCWE-94
10.0CRITICAL
NVD MITRE
EPSS Score
0.8%
Top 45.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

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
Open in CVSS calculator →

Weaknesses

CWE-94CWE-1321CWE-653

Affected Products

patriksimek
oss-project
vm2Library
OSS Libraries / npm
Node.js Foundation
oss-project·USaka nodejs foundation, node foundation
vm2
OSS Libraries
vm2 project
oss-projectaka vm2
vm2Library
OSS Libraries / npm

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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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
https://access.redhat.com/errata/RHSA-2026:50850
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-44005
access.redhat.com
and 2 more references View all →

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