CVE-2026-43997 - Vulnerability Details - OpenCVE

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact total

Vendors	Products
Patriksimek	Vm2

No data.

No data.

References

Link	Providers
https://www.spirityenterprise.com/pentest
https://www.spirityenterprise.com/managed-detection-response
https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6

History

Thu, 14 May 2026 05:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 13 May 2026 20:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Patriksimek Patriksimek vm2
Vendors & Products		Patriksimek Patriksimek vm2

Wed, 13 May 2026 18:00:00 +0000

Type	Values Removed	Values Added
Description		vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, it is possible to obtain the host Object. There are various ways to use the host Object, to escape the sandbox, one example would be using HostObject.getOwnPropertySymbols to obtain Symbol(nodejs.util.inspect.custom). This vulnerability is fixed in 3.11.0.
Title		vm2: Sandbox Escape
Weaknesses		CWE-94
References		https://github.com/patriksimek/vm2/security/advisories/GHSA-47x8-96vw-5wg6
Metrics		cvssV3_1 `{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-05-13T17:17:54.869Z

Updated: 2026-05-14T03:56:41.615Z

Reserved: 2026-05-04T20:24:31.917Z

Link: CVE-2026-43997

Vulnrichment

Updated: 2026-05-13T18:40:07.880Z

NVD

Status : Undergoing Analysis

Published: 2026-05-13T18:16:16.177

Modified: 2026-05-13T19:17:25.613

Link: CVE-2026-43997

Redhat

No data.

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