CVE-2026-55641

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{"affected": [{"affectedData": [{"product": "9router", "vendor": "decolua", "versions": [{"status": "affected", "version": "< 0.5.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "9Router is an AI router & token saver. Prior to 0.5.2, 9router determines whether a /v1 LLM proxy request is local by reading the client-controlled Host header, allowing a remote unauthenticated attacker to send Host: localhost and bypass API-key authentication. In the default configuration, this exposes the /v1 proxy to upstream provider calls using stored provider credentials and allows /v1/search with the searxng provider_options.baseUrl parameter to drive server-side requests to internal or cloud-metadata hosts. This issue is fixed in version 0.5.2."}, {"lang": "es", "value": "9Router es un router de IA y ahorrador de tokens. Antes de la versi\u00f3n 0.5.2, 9router determina si una solicitud de proxy LLM /v1 es local leyendo el encabezado Host controlado por el cliente, permitiendo a un atacante remoto no autenticado enviar Host: localhost y omitir la autenticaci\u00f3n por clave de API. En la configuraci\u00f3n predeterminada, esto expone el proxy /v1 a llamadas de proveedores ascendentes utilizando credenciales de proveedor almacenadas y permite /v1/search con el par\u00e1metro searxng provider_options.baseUrl para dirigir solicitudes del lado del servidor a hosts internos o de metadatos en la nube. Este problema est\u00e1 solucionado en la versi\u00f3n 0.5.2."}], "id": "CVE-2026-55641", "lastModified": "2026-10-25T15:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55641", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-10T19:06:04.625545Z", "version": "2.0.3"}}]}, "published": "2026-07-10T17:16:59.330", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/decolua/9router/commit/b282f0554972ea35281520738759d76abcd0b0b3"}, {"source": "security-advisories@github.com", "url": "https://github.com/decolua/9router/releases/tag/v0.5.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/decolua/9router/security/advisories/GHSA-86m2-fcxq-5q7c"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/decolua/9router/security/advisories/GHSA-86m2-fcxq-5q7c"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-290"}, {"lang": "en", "value": "CWE-348"}, {"lang": "en", "value": "CWE-918"}, {"lang": "en", "value": "CWE-1327"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.5.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "9router", "source": "cna", "vendor": "decolua"}, "product": "9router", "vendor": "decolua"}], "created": "2026-07-10T17:30:17.408668+00:00", "updated": "2026-08-01T12:45:03.463641+00:00", "vendors": ["decolua", "decolua$PRODUCT$9router"]}