{"cve":"CVE-2017-18587","nvd":{"published":"2019-08-26T13:15:10.993","modified":"2026-06-17T01:13:08.933","status":"Modified","description":"An issue was discovered in the hyper crate before 0.9.18 for Rust. It mishandles newlines in headers.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-93"],"references":["https://rustsec.org/advisories/RUSTSEC-2017-0002.html","https://rustsec.org/advisories/RUSTSEC-2017-0002.html"],"products":["hyper:hyper"],"source":"nvd","synced_at":"2026-10-19T20:58:39.700375520+00:00"},"epss":{"cve":"CVE-2017-18587","score":0.01033,"percentile":0.63778,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-q89x-f52w-6hj2","url":"https://osv.dev/vulnerability/GHSA-q89x-f52w-6hj2","summary":"Headers containing newline characters can split messages in hyper","modified":"2023-11-08T03:59:16.284067Z","packages":[{"ecosystem":"crates.io","name":"hyper","purl":"pkg:cargo/hyper","ranges":[">=0.10.0 <0.10.2"],"fixed":["0.10.2"]},{"ecosystem":"crates.io","name":"hyper","purl":"pkg:cargo/hyper","ranges":["<0.9.18"],"fixed":["0.9.18"]}]},{"id":"RUSTSEC-2017-0002","url":"https://osv.dev/vulnerability/RUSTSEC-2017-0002","summary":"headers containing newline characters can split messages","modified":"2023-11-08T03:59:16.284067Z","packages":[{"ecosystem":"crates.io","name":"hyper","purl":"pkg:cargo/hyper","ranges":[">=0.0.0-0 <0.9.18",">=0.10.0 <0.10.2"],"fixed":["0.9.18","0.10.2"]}]}],"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."]}