CVE-2026-47139
Full vulnerability record from the local CVENow database.
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.
Severity
HIGH
CVSS score
8.6
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-06-12 15:16:28.273000
Last modified
2026-10-26 11:10:00.157000
View original CVE JSON
{
"id": "CVE-2026-47139",
"sourceIdentifier": "[email protected]",
"published": "2026-06-12T15:16:28.273",
"lastModified": "2026-10-26T11:10:00.157",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "vm2 es una vm/sandbox de código abierto para Node.js. Antes de la versión 3.11.4, NodeVM permite excluir los builtins de red públicos de la opción de builtin comodín. Con esta configuración, el acceso directo a http, https, http2, net, dgram, tls, dns y dns/promises está bloqueado. Sin embargo, Node.js también expone builtins HTTP internos con guion bajo, como _http_client y _http_server. Estos no están bloqueados cuando los módulos públicos son excluidos. El código en sandbox puede usar estos builtins internos para realizar solicitudes HTTP salientes y abrir sockets HTTP en escucha, incluso si los módulos de red públicos son denegados. Este problema ha sido parcheado en la versión 3.11.4."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "patriksimek",
"product": "vm2",
"versions": [
{
"version": "< 3.11.4",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 3.9,
"impactScore": 4.0
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-06-12T16:07:30.118741Z",
"id": "CVE-2026-47139",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-693"
}
]
}
],
"references": [
{
"url": "https://github.com/patriksimek/vm2/commit/436053e30eecbabd487e2fd2959c137ac34e2bb1",
"source": "[email protected]"
},
{
"url": "https://github.com/patriksimek/vm2/releases/tag/v3.11.4",
"source": "[email protected]"
},
{
"url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-r9pm-gxmw-wv6p",
"source": "[email protected]"
},
{
"url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-r9pm-gxmw-wv6p",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
]
}