{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-107715","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-08T17:21:52.975Z","datePublished":"2026-10-08T21:27:24.651Z","dateUpdated":"2026-10-09T13:22:27.174Z"},"containers":{"cna":{"title":"Mechanize sends credential headers to another host after an HTTP redirect","problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-522","lang":"en","description":"CWE-522: Insufficiently Protected Credentials","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/sparklemotion/mechanize/security/advisories/GHSA-2mwr-xjcg-37j7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/sparklemotion/mechanize/security/advisories/GHSA-2mwr-xjcg-37j7"},{"name":"https://github.com/sparklemotion/mechanize/pull/676","tags":["x_refsource_MISC"],"url":"https://github.com/sparklemotion/mechanize/pull/676"},{"name":"https://github.com/sparklemotion/mechanize/commit/02a1235842d6eda8d4a5a3d8f13aba2cecf52e4f","tags":["x_refsource_MISC"],"url":"https://github.com/sparklemotion/mechanize/commit/02a1235842d6eda8d4a5a3d8f13aba2cecf52e4f"},{"name":"https://github.com/sparklemotion/mechanize/commit/94e0902867296be804f36eccbb47acf7d5018745","tags":["x_refsource_MISC"],"url":"https://github.com/sparklemotion/mechanize/commit/94e0902867296be804f36eccbb47acf7d5018745"},{"name":"https://github.com/sparklemotion/mechanize/commit/ac49abf2869297d83c3b11bbfb8b18e63b588c95","tags":["x_refsource_MISC"],"url":"https://github.com/sparklemotion/mechanize/commit/ac49abf2869297d83c3b11bbfb8b18e63b588c95"},{"name":"https://github.com/sparklemotion/mechanize/releases/tag/v2.14.1","tags":["x_refsource_MISC"],"url":"https://github.com/sparklemotion/mechanize/releases/tag/v2.14.1"}],"affected":[{"vendor":"sparklemotion","product":"mechanize","versions":[{"version":"< 2.15.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-08T21:27:24.651Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-2mwr-xjcg-37j7","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/sparklemotion/mechanize/security/advisories/GHSA-2mwr-xjcg-37j7","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-09T13:22:03.491703Z","id":"CVE-2026-107715","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-09T13:22:27.174Z"}}]}}