{"cve":"CVE-2020-35884","nvd":{"published":"2020-12-31T10:15:16.333","modified":"2026-06-17T03:14:31.923","status":"Modified","description":"An issue was discovered in the tiny_http crate through 2020-06-16 for Rust. HTTP Request smuggling can occur via a malformed Transfer-Encoding header.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5},"cwes":["CWE-444"],"references":["https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M3JDNRE5RXJOWZZZF5QSCG4GUCSLTHF2/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VO6SRTCEPEYO2OX647I3H5XUWLFDRDWL/","https://rustsec.org/advisories/RUSTSEC-2020-0031.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M3JDNRE5RXJOWZZZF5QSCG4GUCSLTHF2/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VO6SRTCEPEYO2OX647I3H5XUWLFDRDWL/"],"products":["fedoraproject:fedora","tiny-http_project:tiny-http"],"source":"nvd","synced_at":"2026-10-19T21:12:09.559580076+00:00"},"epss":{"cve":"CVE-2020-35884","score":0.01087,"percentile":0.65312,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7v2r-wxmg-mgvc","url":"https://osv.dev/vulnerability/GHSA-7v2r-wxmg-mgvc","summary":"HTTP Request smuggling in tiny_http","modified":"2023-11-08T04:03:37.438533Z","packages":[{"ecosystem":"crates.io","name":"tiny_http","purl":"pkg:cargo/tiny_http","ranges":["<0.8.0"],"fixed":["0.8.0"]}]},{"id":"RUSTSEC-2020-0031","url":"https://osv.dev/vulnerability/RUSTSEC-2020-0031","summary":"HTTP Request smuggling through malformed Transfer Encoding headers","modified":"2023-11-08T04:03:37.438533Z","packages":[{"ecosystem":"crates.io","name":"tiny_http","purl":"pkg:cargo/tiny_http","ranges":[">=0.0.0-0 <0.6.3",">=0.7.0-0 <0.8.0"],"fixed":["0.6.3","0.8.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}