CVE-2026-54609

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{"affected": [{"affectedData": [{"product": "QTINeon", "vendor": "Quiet-Terminal-Interactive", "versions": [{"status": "affected", "version": "1.0.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "QTI Neon is a minimal, game-agnostic, relay-based UDP multiplayer protocol library. In version 1.0.0, the relay's handleReconnectRequest forwards RECONNECT_REQUEST packets to the host without bounding them, so an unauthenticated client can drive relay-to-host amplification and cause a denial of service on the host. No fixed version is available as of this review."}, {"lang": "es", "value": "QTI Neon es una biblioteca de protocolo multijugador UDP m\u00ednima, agn\u00f3stica de juegos y basada en retransmisi\u00f3n. En la versi\u00f3n 1.0.0, la funci\u00f3n handleReconnectRequest del retransmisor reenv\u00eda paquetes RECONNECT_REQUEST al anfitri\u00f3n sin limitarlos, por lo que un cliente no autenticado puede impulsar la amplificaci\u00f3n de retransmisor a anfitri\u00f3n y causar una denegaci\u00f3n de servicio en el anfitri\u00f3n. No hay una versi\u00f3n corregida disponible a la fecha de esta revisi\u00f3n."}], "id": "CVE-2026-54609", "lastModified": "2026-10-23T23:10:00.157", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54609", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-28T17:06:51.523197Z", "version": "2.0.3"}}]}, "published": "2026-07-28T17:16:52.507", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/Quiet-Terminal-Interactive/QTINeon/security/advisories/GHSA-85rg-p3fr-xc2f"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-406"}, {"lang": "en", "value": "CWE-770"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.0.0"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "QTINeon", "source": "cna", "vendor": "Quiet-Terminal-Interactive"}, "product": "qtineon", "vendor": "quiet-terminal-interactive"}], "created": "2026-07-28T20:33:59.622673+00:00", "updated": "2026-08-03T14:45:04.298780+00:00", "vendors": ["quiet-terminal-interactive", "quiet-terminal-interactive$PRODUCT$qtineon"]}