{"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\u2019s 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\u2019s 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"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-6338", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-11T14:22:42.512428Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-11T14:23:17.549Z"}}], "cna": {"title": "HTTP request smuggling in Kong Enteprise Gateway", "source": {"discovery": "UNKNOWN"}, "impacts": [{"capecId": "CAPEC-33", "descriptions": [{"lang": "en", "value": "CAPEC-33 HTTP Request Smuggling"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "AUTOMATIC", "baseScore": 4.9, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "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", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnerabilityResponseEffort": "MODERATE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Kong", "product": "Kong Enterprise Gateway", "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"}], "platforms": ["Linux"], "defaultStatus": "unaffected"}], "references": [{"url": "https://support.konghq.com/support/s/article/CVE-2026-6338", "tags": ["vendor-advisory"]}], "x_generator": {"engine": "Vulnogram 1.0.2"}, "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\u2019s HTTP request processing pipeline when handling untrusted HTTP/1.1 traffic.", "supportingMedia": [{"type": "text/html", "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\u2019s HTTP request processing pipeline when handling untrusted HTTP/1.1 traffic. ", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-444", "description": "CWE-444 Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')"}]}], "providerMetadata": {"orgId": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb", "shortName": "Kong", "dateUpdated": "2026-06-11T13:47:01.309Z"}}}, "cveMetadata": {"cveId": "CVE-2026-6338", "state": "PUBLISHED", "dateUpdated": "2026-06-11T14:23:21.941Z", "dateReserved": "2026-04-15T10:07:35.856Z", "assignerOrgId": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb", "datePublished": "2026-06-11T13:47:01.309Z", "assignerShortName": "Kong"}, "dataVersion": "5.2"}

{"cveTags": [], "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\u2019s HTTP request processing pipeline when handling untrusted HTTP/1.1 traffic."}], "id": "CVE-2026-6338", "lastModified": "2026-06-11T15:32:52.983", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "AUTOMATIC", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 4.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/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:A/V:X/RE:M/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "MODERATE"}, "source": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb", "type": "Secondary"}]}, "published": "2026-06-11T14:16:32.553", "references": [{"source": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb", "url": "https://support.konghq.com/support/s/article/CVE-2026-6338"}], "sourceIdentifier": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["linux"], "status": "affected", "versions": {"scheme": "generic", "value": "[3.4.0.0,3.4.3.27)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "generic", "value": "[3.10.0.0,3.10.0.12)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "generic", "value": "[3.11.0.0,3.11.0.12)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "generic", "value": "[3.12.0.0,3.12.0.7)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "generic", "value": "[3.13.0.0,3.13.0.5)"}}, {"platform": ["linux"], "status": "affected", "versions": {"scheme": "generic", "value": "[3.14.0.0,3.14.0.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Kong Enterprise Gateway", "source": "cna", "vendor": "Kong"}, "product": "kong_enterprise_gateway", "vendor": "kong"}], "created": "2026-06-11T20:00:22.845041+00:00", "updated": "2026-06-12T20:18:04.685538+00:00", "vendors": ["kong", "kong$PRODUCT$kong_enterprise_gateway"]}