{"id":"CVE-2026-107715","revision":"10199550ea8e436682d63eee2f808fed","records":[{"revision":"10199550ea8e436682d63eee2f808fed","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107715","aliases":[],"title":"Mechanize sends credential headers to another host after an HTTP redirect","description":"The Mechanize library is used for automating interaction with websites. Prior to 2.14.1, Mechanize sends caller-supplied credential headers to a different host after an HTTP redirect. Mechanize#request_headers= is reapplied by Mechanize::HTTP::Agent#request_add_headers even after Mechanize::HTTP::Agent#response_redirect strips per-request headers, and the protected header lists omit Proxy-Authorization and Cookie2. An attacker who controls a redirect target can capture bearer tokens or session cookies supplied through request_headers= or the per-request headers argument, while Mechanize#cookie_jar and Mechanize::HTTP::AuthStore are not affected. This issue is fixed in version 2.14.1.","state":0,"publishedAt":"2026-10-08T21:27:24.651+00:00","modifiedAt":"2026-10-09T13:22:27.174+00:00","affected":[{"ecosystem":"Vendor product","name":"mechanize","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"sparklemotion\",\n                    \"product\": \"mechanize\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 2.15.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","score":6.8,"severity":"MEDIUM"}],"references":["https://github.com/sparklemotion/mechanize/security/advisories/GHSA-2mwr-xjcg-37j7","https://github.com/sparklemotion/mechanize/pull/676","https://github.com/sparklemotion/mechanize/commit/02a1235842d6eda8d4a5a3d8f13aba2cecf52e4f","https://github.com/sparklemotion/mechanize/commit/94e0902867296be804f36eccbb47acf7d5018745","https://github.com/sparklemotion/mechanize/commit/ac49abf2869297d83c3b11bbfb8b18e63b588c95","https://github.com/sparklemotion/mechanize/releases/tag/v2.14.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107715","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107715","identifiers":["CVE-2026-107715"]},"retained":false,"historicalAffected":[]}],"coverage":[]}