{"id":"JLSEC-2026-389","details":"The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.","modified":"2026-07-18T18:25:15.592376176Z","published":"2026-05-04T13:12:06.605Z","upstream":["CVE-2022-27780"],"database_specific":{"license":"CC-BY-4.0","sources":[{"imported":"2026-07-17T21:46:30.538Z","modified":"2026-06-17T04:37:29.713Z","published":"2022-06-02T14:15:44.267Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2022-27780","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2022-27780","database_specific":{"status":"Modified"},"id":"CVE-2022-27780"}]},"references":[{"type":"WEB","url":"https://hackerone.com/reports/1553841"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202212-01"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20220609-0009/"}],"affected":[{"package":{"name":"CURL_jll","ecosystem":"Julia","purl":"pkg:julia/CURL_jll?uuid=b21e61f3-bafc-59ac-ab14-4c5c62d6588d"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.5.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-389.json"}},{"package":{"name":"LibCURL_jll","ecosystem":"Julia","purl":"pkg:julia/LibCURL_jll?uuid=deac9b47-8bc7-5906-a0fe-35ac56dc84c0"},"ranges":[{"type":"SEMVER","events":[{"introduced":"7.81.0+0"},{"fixed":"7.83.1+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-389.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V2","score":"AV:N/AC:L/Au:N/C:N/I:P/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}