CVE-2026-44450

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{"affected": [{"affectedData": [{"product": "Lumiverse", "vendor": "prolix-oc", "versions": [{"status": "affected", "version": "< 0.9.7"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Lumiverse is a full-featured AI chat application. Prior to 0.9.7, the MCP server creation endpoint validates the command field against an allowlist of binary names but forwards the args array to the child process without any validation. Every binary on the allowlist accepts an inline-code execution flag (-e for node/bun, -c for python3/deno), giving any logged-in user arbitrary OS-level code execution on the Lumiverse server. The route requires only requireAuth (not requireOwner). The server binds on all interfaces (::) and the host-header rebinding check is bypassed trivially by any HTTP client that sends Host: localhost:<port> directly, making this exploitable from any machine with network access to the server port. This vulnerability is fixed in 0.9.7."}, {"lang": "es", "value": "Lumiverse es una aplicaci\u00f3n de chat de IA con todas las funciones. Antes de la 0.9.7, el endpoint de creaci\u00f3n del servidor MCP valida el campo de comando contra una lista de permitidos de nombres de binarios, pero reenv\u00eda el array de argumentos al proceso hijo sin ninguna validaci\u00f3n. Cada binario en la lista de permitidos acepta un flag de ejecuci\u00f3n de c\u00f3digo en l\u00ednea (-e para node/bun, -c para python3/deno), otorgando a cualquier usuario autenticado la ejecuci\u00f3n arbitraria de c\u00f3digo a nivel de sistema operativo en el servidor Lumiverse. La ruta solo requiere requireAuth (no requireOwner). El servidor se enlaza a todas las interfaces (::) y la verificaci\u00f3n de re-enlace del encabezado Host se omite trivialmente por cualquier cliente HTTP que env\u00ede Host: localhost:<port> directamente, haciendo esto explotable desde cualquier m\u00e1quina con acceso de red al puerto del servidor. Esta vulnerabilidad se corrigi\u00f3 en la 0.9.7."}], "id": "CVE-2026-44450", "lastModified": "2026-07-24T11:10:00.170", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-44450", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-01T17:03:56.285972Z", "version": "2.0.3"}}]}, "published": "2026-05-26T21:16:38.173", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/prolix-oc/Lumiverse/security/advisories/GHSA-mfwv-ch2f-9j5v"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-88"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

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