{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-12T16:01:53.849","vulnerabilities":[{"cve":{"id":"CVE-2021-32715","sourceIdentifier":"security-advisories@github.com","published":"2021-07-07T20:15:08.750","lastModified":"2024-11-21T06:07:35.213","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"hyper is an HTTP library for rust. hyper's HTTP/1 server code had a flaw that incorrectly parses and accepts requests with a `Content-Length` header with a prefixed plus sign, when it should have been rejected as illegal. This combined with an upstream HTTP proxy that doesn't parse such `Content-Length` headers, but forwards them, can result in \"request smuggling\" or \"desync attacks\". The flaw exists in all prior versions of hyper prior to 0.14.10, if built with `rustc` v1.5.0 or newer. The vulnerability is patched in hyper version 0.14.10. Two workarounds exist: One may reject requests manually that contain a plus sign prefix in the `Content-Length` header or ensure any upstream proxy handles `Content-Length` headers with a plus sign prefix."},{"lang":"es","value":"El código del servidor HTTP/1 de hyper presentaba un fallo que analizaba y aceptaba incorrectamente peticiones con una cabecera \"Content-Length\" con un signo más prefijado, cuando debería haber sido rechazada como ilegal. Esto, combinado con un proxy HTTP ascendente que no analiza dichas cabeceras \"Content-Length\", sino que las reenvía, puede resultar en \"request smuggling\" o \"desync attacks\". El fallo se presenta en todas las versiones de hyper anteriores a 0.14.10, si se construye con \"rustc\" versión v1.5.0 o más reciente. La vulnerabilidad está parcheada en la versión 0.14.10 de hyper. Se presentan dos soluciones: Uno puede rechazar manualmente las peticiones que contengan un prefijo de signo más en la cabecera \"Content-Length\" o asegurarse de que cualquier proxy upstream maneja las cabeceras \"Content-Length\" con un prefijo de signo más"}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","baseScore":3.1,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":1.6,"impactScore":1.4},{"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:L/A:N","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":1.4}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:P/A:N","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"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:hyper:hyper:*:*:*:*:*:rust:*:*","versionEndExcluding":"0.14.10","matchCriteriaId":"1A284A7B-4B84-49F0-9EDB-C2B5877217C9"}]}]}],"references":[{"url":"https://github.com/hyperium/hyper/security/advisories/GHSA-f3pg-qwvg-p99c","source":"security-advisories@github.com","tags":["Exploit","Third Party Advisory"]},{"url":"https://github.com/rust-lang/rust/pull/28826/commits/123a83326fb95366e94a3be1a74775df4db97739","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/hyperium/hyper/security/advisories/GHSA-f3pg-qwvg-p99c","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"]},{"url":"https://github.com/rust-lang/rust/pull/28826/commits/123a83326fb95366e94a3be1a74775df4db97739","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]}]}}]}