{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-6338","assignerOrgId":"02762ae7-200e-4b20-9b2b-a77d5b8fc4cb","state":"PUBLISHED","assignerShortName":"Kong","dateReserved":"2026-04-15T10:07:35.856Z","datePublished":"2026-06-11T13:47:01.309Z","dateUpdated":"2026-06-11T14:23:21.941Z"},"containers":{"cna":{"providerMetadata":{"orgId":"02762ae7-200e-4b20-9b2b-a77d5b8fc4cb","shortName":"Kong","dateUpdated":"2026-06-11T13:47:01.309Z"},"title":"HTTP request smuggling in Kong Enteprise Gateway","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-444","description":"CWE-444 Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-33","descriptions":[{"lang":"en","value":"CAPEC-33 HTTP Request Smuggling"}]}],"affected":[{"vendor":"Kong","product":"Kong Enterprise Gateway","platforms":["Linux"],"versions":[{"status":"affected","version":"3.4.0.0","lessThan":"3.4.3.27","versionType":"kong enteprise gateway 3.4"},{"status":"affected","version":"3.10.0.0","lessThan":"3.10.0.12","versionType":"kong enteprise gateway 3.10"},{"status":"affected","version":"3.11.0.0","lessThan":"3.11.0.12","versionType":"kong enteprise gateway 3.11"},{"status":"affected","version":"3.12.0.0","lessThan":"3.12.0.7","versionType":"kong enteprise gateway 3.12"},{"status":"affected","version":"3.13.0.0","lessThan":"3.13.0.5","versionType":"kong enteprise gateway 3.13"},{"status":"affected","version":"3.14.0.0","lessThan":"3.14.0.4","versionType":"kong enteprise gateway 3.14"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"A HTTP request smuggling and desynchronization vulnerability affects Kong Gateway Enterprise 3.4, 3.10, 3.11, 3.12, 3.13, and 3.14 series. The vulnerability is caused by a parsing flaw in Kong’s HTTP request processing pipeline when handling untrusted HTTP/1.1 traffic.","supportingMedia":[{"type":"text/html","base64":false,"value":"A HTTP request smuggling and desynchronization vulnerability affects Kong Gateway Enterprise 3.4, 3.10, 3.11, 3.12, 3.13, and 3.14 series. The vulnerability is caused by a parsing flaw in Kong’s HTTP request processing pipeline when handling untrusted HTTP/1.1 traffic. "}]}],"references":[{"url":"https://support.konghq.com/support/s/article/CVE-2026-6338","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","subIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"AUTOMATIC","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"MODERATE","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":4.9,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P/R:A/RE:M"}}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-11T14:22:42.512428Z","id":"CVE-2026-6338","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-11T14:23:21.941Z"}}]}}