Arbitrary Prototype Access in vm2 for Node.js
CVE-2026-44006

10CRITICAL

Key Information:

Vendor

Patriksimek

Status
Vm2
Vendor
CVE Published:
13 May 2026

What is CVE-2026-44006?

The vm2 library, an open-source sandbox for Node.js, has a vulnerability that allows access to arbitrary prototypes through the BaseHandler.getPrototypeOf method. This issue poses a risk in versions prior to 3.11.0. The vulnerability has been addressed in version 3.11.0, mitigating the risk of unauthorized access to system prototypes.

Affected Version(s)

vm2 < 3.11.0

References

https://github.com/patriksimek/vm2/security/advisories/GH...
x_refsource_CONFIRM

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.