{"id":"CVE-2026-107714","published":"2026-10-08T22:17:27.003","lastModified":"2026-10-09T16:38:57.820","description":"The Mechanize library is used for automating interaction with websites. Prior to 2.14.1, Mechanize::HTTP::Agent#response_redirect treats redirects as same-origin when the host matches without consistently comparing scheme and port. A same-host HTTPS-to-HTTP redirect can send Authorization and Cookie headers over cleartext, while a same-host redirect to another port can send a caller-supplied Cookie header to a different service. Cookies in Mechanize#cookie_jar remain scoped separately; the issue affects caller-supplied headers and can disclose credentials without affecting integrity or availability. This issue is fixed in version 2.14.1.","cvssScore":5.9,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-200","CWE-319","CWE-522"],"vendors":[],"products":[],"references":[{"url":"https://github.com/sparklemotion/mechanize/commit/02a1235842d6eda8d4a5a3d8f13aba2cecf52e4f","tags":[]},{"url":"https://github.com/sparklemotion/mechanize/commit/2f97fe358a91928e5e48221f2ec5cb50fa1a43ba","tags":[]},{"url":"https://github.com/sparklemotion/mechanize/pull/676","tags":[]},{"url":"https://github.com/sparklemotion/mechanize/releases/tag/v2.14.1","tags":[]},{"url":"https://github.com/sparklemotion/mechanize/security/advisories/GHSA-5jgv-wc2m-xv99","tags":[]}],"exploitRefs":[{"url":"https://github.com/sparklemotion/mechanize/commit/02a1235842d6eda8d4a5a3d8f13aba2cecf52e4f","tags":[]},{"url":"https://github.com/sparklemotion/mechanize/commit/2f97fe358a91928e5e48221f2ec5cb50fa1a43ba","tags":[]},{"url":"https://github.com/sparklemotion/mechanize/pull/676","tags":[]},{"url":"https://github.com/sparklemotion/mechanize/releases/tag/v2.14.1","tags":[]},{"url":"https://github.com/sparklemotion/mechanize/security/advisories/GHSA-5jgv-wc2m-xv99","tags":[]}],"hasPoc":true,"ai":null}