vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM supports excluding public network builtins from the wildcard builtin option. With this configuration direct access to http, https, http2, net, dgram, tls, dns, and dns/promises is blocked. However, Node.js also exposes underscored internal HTTP builtins such as _http_client and _http_server. These are not blocked when the public modules are excluded. Sandboxed code can use these internal builtins to make outbound HTTP requests and open listening HTTP sockets even though the public network modules are denied. This issue has been patched in version 3.11.4.

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Source ID Title
Github GHSA Github GHSA GHSA-r9pm-gxmw-wv6p NodeVM network builtin exclusions bypass via internal _http_client and _http_server
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 12 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 12 Jun 2026 15:45:00 +0000

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

Fri, 12 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Description vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM supports excluding public network builtins from the wildcard builtin option. With this configuration direct access to http, https, http2, net, dgram, tls, dns, and dns/promises is blocked. However, Node.js also exposes underscored internal HTTP builtins such as _http_client and _http_server. These are not blocked when the public modules are excluded. Sandboxed code can use these internal builtins to make outbound HTTP requests and open listening HTTP sockets even though the public network modules are denied. This issue has been patched in version 3.11.4.
Title vm2: NodeVM network builtin exclusions bypass via internal _http_client and _http_server
Weaknesses CWE-693
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-12T16:07:53.050Z

Reserved: 2026-05-18T19:50:18.696Z

Link: CVE-2026-47139

cve-icon Vulnrichment

Updated: 2026-06-12T16:07:48.678Z

cve-icon NVD

Status : Deferred

Published: 2026-06-12T15:16:28.273

Modified: 2026-06-12T17:16:23.737

Link: CVE-2026-47139

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-12T16:30:14Z

Weaknesses