{"id":"CVE-2026-107715","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-107715","generatedAt":"2026-10-28T01:03:22.071Z","title":"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.","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.","published":"2026-10-08T22:17:27.000Z","lastModified":"2026-10-09T16:40:30.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N"},"cwe":["CWE-200","CWE-522"],"affected":[],"epss":{"score":0.00501,"percentile":0.42631,"date":"2026-10-26","history":[{"date":"2026-10-09","score":0.00395,"percentile":0.3159}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.50%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-08T22:17:27.000Z","detail":{"score":"6.8","severity":"MEDIUM","publishedAt":"2026-10-08T22:17:27.163Z"},"summary":"New CVE, medium severity (CVSS 6.8)."}],"references":[{"url":"https://github.com/sparklemotion/mechanize/commit/02a1235842d6eda8d4a5a3d8f13aba2cecf52e4f","source":"security-advisories@github.com"},{"url":"https://github.com/sparklemotion/mechanize/commit/94e0902867296be804f36eccbb47acf7d5018745","source":"security-advisories@github.com"},{"url":"https://github.com/sparklemotion/mechanize/commit/ac49abf2869297d83c3b11bbfb8b18e63b588c95","source":"security-advisories@github.com"},{"url":"https://github.com/sparklemotion/mechanize/pull/676","source":"security-advisories@github.com"},{"url":"https://github.com/sparklemotion/mechanize/releases/tag/v2.14.1","source":"security-advisories@github.com"},{"url":"https://github.com/sparklemotion/mechanize/security/advisories/GHSA-2mwr-xjcg-37j7","source":"security-advisories@github.com"},{"url":"https://github.com/sparklemotion/mechanize/security/advisories/GHSA-2mwr-xjcg-37j7","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-107715","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}