{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-26T21:18:28.340","vulnerabilities":[{"cve":{"id":"CVE-2020-5207","sourceIdentifier":"security-advisories@github.com","published":"2020-01-27T20:15:10.980","lastModified":"2024-11-21T05:33:40.807","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In Ktor before 1.3.0, request smuggling is possible when running behind a proxy that doesn't handle Content-Length and Transfer-Encoding properly or doesn't handle \\n as a headers separator."},{"lang":"es","value":"En Ktor versiones anteriores a 1.3.0, el tráfico no autorizado de peticiones es posible cuando se ejecuta detrás de un proxy que no maneja Content-Length y Transfer-Encoding apropiadamente o no maneja \\n como un separador de encabezados."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.3,"impactScore":2.7},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:N","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-444"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-444"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:jetbrains:ktor:*:*:*:*:*:*:*:*","versionEndExcluding":"1.3.0","matchCriteriaId":"1D376B10-652C-4859-9DD4-98421D5D3D65"}]}]}],"references":[{"url":"https://github.com/ktorio/ktor/pull/1547","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/ktorio/ktor/security/advisories/GHSA-xrr9-rh8p-433v","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://github.com/ktorio/ktor/pull/1547","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/ktorio/ktor/security/advisories/GHSA-xrr9-rh8p-433v","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}