{"api_version":"1","generated_at":"2026-04-22T22:49:24+00:00","cve":"CVE-2019-9518","urls":{"html":"https://cve.report/CVE-2019-9518","api":"https://cve.report/api/cve/CVE-2019-9518.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-9518","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-9518"},"summary":{"title":"CVE-2019-9518","description":"Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. 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vulnerability."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU."}]},"generator":{"engine":"Vulnogram 0.0.7"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-400 Uncontrolled Resource Consumption"}]}]},"references":{"reference_data":[{"name":"VU#605641","refsource":"CERT-VN","url":"https://kb.cert.org/vuls/id/605641/"},{"name":"https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md","refsource":"MISC","url":"https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md"},{"refsource":"BUGTRAQ","name":"20190814 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 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