CVE-2026-54464

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{"affected": [{"affectedData": [{"product": "websocket-driver-ruby", "vendor": "faye", "versions": [{"status": "affected", "version": "< 0.8.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "### Impact\n\nIf this library is used in tandem with the `permessage-deflate` extension, a\nWebSocket server or client can be made to accept messages that are larger than\nthe configured maximum message size. This is because this limit is checked\nagainst the message frames' length headers, which give the size of the\ncompressed data, not the size after decompression. This can lead to applications\naccepting larger messages than expected and exceeding their intended resource\nusage.\n\n### Patches\n\nThe issue has been patched in version 0.8.1, by checking the length of messages\nafter they are processed by incoming extensions. All users should upgrade to\nthis version.\n\n### Workarounds\n\nNo known workarounds exist.\n\n### Acknowledgements\n\nThis issue was discovered and reported by Pranjali Thakur, DepthFirst Security\nResearch Team."}, {"lang": "es", "value": "### Impacto\n\nSi esta biblioteca se utiliza junto con la extensi\u00f3n \u2019permessage-deflate\u2019, un servidor o cliente WebSocket puede ser forzado a aceptar mensajes que son m\u00e1s grandes que el tama\u00f1o m\u00e1ximo de mensaje configurado. Esto se debe a que este l\u00edmite se verifica contra los encabezados de longitud de los marcos de mensaje, que indican el tama\u00f1o de los datos comprimidos, no el tama\u00f1o despu\u00e9s de la descompresi\u00f3n. Esto puede llevar a que las aplicaciones acepten mensajes m\u00e1s grandes de lo esperado y excedan su uso de recursos previsto.\n\n### Parches\n\nEl problema ha sido parcheado en la versi\u00f3n 0.8.1, al verificar la longitud de los mensajes despu\u00e9s de que son procesados por las extensiones entrantes. Todos los usuarios deber\u00edan actualizar a esta versi\u00f3n.\n\n### Soluciones provisionales\n\nNo existen soluciones provisionales conocidas.\n\n### Agradecimientos\n\nEste problema fue descubierto y reportado por Pranjali Thakur, del Equipo de Investigaci\u00f3n de Seguridad de DepthFirst."}], "id": "CVE-2026-54464", "lastModified": "2026-10-24T20:10:00.137", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54464", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-21T02:13:09.230459Z", "version": "2.0.3"}}]}, "published": "2026-07-17T20:17:26.770", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/faye/websocket-driver-ruby/commit/fa8641724f10bf3273585f1dcf9041f540bbd036"}, {"source": "security-advisories@github.com", "url": "https://github.com/faye/websocket-driver-ruby/security/advisories/GHSA-33ph-fccm-39pj"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.8.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "websocket-driver-ruby", "source": "cna", "vendor": "faye"}, "product": "websocket-driver-ruby", "vendor": "faye"}], "created": "2026-07-22T02:00:07.505951+00:00", "updated": "2026-08-01T08:30:03.596897+00:00", "vendors": ["faye", "faye$PRODUCT$websocket-driver-ruby"]}