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CVE-2026-47139

vm2: NodeVM network builtin exclusions bypass via internal _http_client and _http_server

Published: Jun 12, 2026Updated: Jun 12, 2026 Sources: CVE List NVDCWE-693
8.6HIGH
NVD MITRE
EPSS Score
0.3%
Top 79.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-693

Affected Products

patriksimek
oss-project
vm2Library
OSS Libraries / npm

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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References

https://github.com/patriksimek/vm2/commit/436053e30eecbabd487e2fd2959c137ac34e2bb1
github.com
https://github.com/patriksimek/vm2/releases/tag/v3.11.4
github.com
https://github.com/patriksimek/vm2/security/advisories/GHSA-r9pm-gxmw-wv6p
github.com

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