CVE-2026-71485

{"id": "CVE-2026-71485", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-71485", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-25T15:23:30.574802Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "centrifugal", "product": "centrifugo", "versions": [{"status": "affected", "version": "< 6.9.0"}]}]}], "published": "2026-08-20T21:17:08.707", "references": [{"url": "https://github.com/centrifugal/centrifugo/commit/84d38cea1dd2efa24375a148817a974c8727f4b0", "source": "security-advisories@github.com"}, {"url": "https://github.com/centrifugal/centrifugo/pull/1182", "source": "security-advisories@github.com"}, {"url": "https://github.com/centrifugal/centrifugo/releases/tag/v6.9.0", "source": "security-advisories@github.com"}, {"url": "https://github.com/centrifugal/centrifugo/security/advisories/GHSA-9468-v6mj-fppw", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-290"}]}], "descriptions": [{"lang": "en", "value": "Centrifugo is an open-source scalable real-time messaging server. Prior to 6.9.0, Centrifugo copies the client-controlled protocol.ConnectRequest.headers map through OnClientConnecting in internal/client/handler.go, ConnectEvent.Headers, and SetEmulatedHeadersToContext. The requestHeaders path in internal/proxy/http.go, the requestMetadata path in internal/proxy/grpc.go, and the Consume path in internal/unigrpc/grpc.go can forward an allowlisted value as a trusted backend header or metadata value. A remote client can spoof a header such as x-trusted-user for connect, refresh, subscribe, publish, RPC, and related proxy calls when the backend relies on that header for authentication or authorization. The unidirectional gRPC transport has no transport-level HTTP header that can override the emulated value. This issue is fixed in version 6.9.0."}, {"lang": "es", "value": "Centrifugo es un servidor de mensajer\u00eda en tiempo real escalable de c\u00f3digo abierto. Antes de la versi\u00f3n 6.9.0, Centrifugo copia el mapa de encabezados de protocol.ConnectRequest controlado por el cliente a trav\u00e9s de OnClientConnecting en internal/client/handler.go, ConnectEvent.Headers y SetEmulatedHeadersToContext. La ruta requestHeaders en internal/proxy/http.go, la ruta requestMetadata en internal/proxy/grpc.go y la ruta Consume en internal/unigrpc/grpc.go pueden reenviar un valor en lista blanca como un encabezado o valor de metadatos de backend de confianza. Un cliente remoto puede suplantar un encabezado como 'x-trusted-user' para llamadas de conexi\u00f3n, actualizaci\u00f3n, suscripci\u00f3n, publicaci\u00f3n, RPC y llamadas de proxy relacionadas cuando el backend depende de ese encabezado para la autenticaci\u00f3n o autorizaci\u00f3n. El transporte gRPC unidireccional no tiene ning\u00fan encabezado HTTP a nivel de transporte que pueda anular el valor emulado. Este problema se corrige en la versi\u00f3n 6.9.0."}], "lastModified": "2026-10-18T20:10:00.110", "sourceIdentifier": "security-advisories@github.com"}