vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.0, vm2's code transformer has a performance optimization that skips AST analysis when the code does not contain catch, import, or async keywords. This fast-path bypass allows sandboxed code to directly access the internal VM2_INTERNAL_STATE_DO_NOT_USE_OR_PROGRAM_WILL_FAIL variable, which exposes internal security functions (handleException, wrapWith, import). This vulnerability is fixed in 3.11.0.

Project Subscriptions

No data.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-wp5r-2gw5-m7q7 vm2's Transformer Fast-Path Bypass Exposes Internal State Variable
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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, vm2's code transformer has a performance optimization that skips AST analysis when the code does not contain catch, import, or async keywords. This fast-path bypass allows sandboxed code to directly access the internal VM2_INTERNAL_STATE_DO_NOT_USE_OR_PROGRAM_WILL_FAIL variable, which exposes internal security functions (handleException, wrapWith, import). This vulnerability is fixed in 3.11.0.
Title vm2: Transformer Fast-Path Bypass Exposes Internal State Variable
Weaknesses CWE-693
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-13T18:41:25.611Z

Reserved: 2026-05-04T21:24:36.505Z

Link: CVE-2026-44003

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-05-13T18:16:16.997

Modified: 2026-05-13T19:17:26.313

Link: CVE-2026-44003

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses