CVE-2026-107715

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.

• CWE-200
• CWE-522

• 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/pull/676
• https://github.com/sparklemotion/mechanize/releases/tag/v2.14.1
• https://github.com/sparklemotion/mechanize/security/advisories/GHSA-2mwr-xjcg-37j7
• https://github.com/sparklemotion/mechanize/security/advisories/GHSA-2mwr-xjcg-37j7

Published

Oct 8, 2026

Last Modified

Oct 9, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-107706Dolibarr ERP CRM before 24.0.2 contains an incorrect authori…4.3
• CVE-2026-107707Intego Antivirus for Windows through 3.0.0.1 contains a link…7.8
• CVE-2026-107708MIT krb5 through 1.22.2 contains a NULL pointer dereference …4.9
• CVE-2026-107709A path traversal vulnerability exists in Bower decompress-zi…7.8
• CVE-2026-10771A vulnerability was found in crmeb crmeb_java 1.4. Affected …7.3
• CVE-2026-107714The Mechanize library is used for automating interaction wit…5.9
• CVE-2026-107716Banks generates meaningful LLM prompts using a simple templa…7.3
• CVE-2026-107717Banks generates meaningful LLM prompts using a simple templa…6.5
• CVE-2026-107718AdonisJS HTTP Server is a package for handling HTTP requests…6.1
• CVE-2026-107719fast-jwt provides fast JSON Web Token (JWT) implementation. …4.2
• CVE-2026-10772Rejected reason: ** DUPLICATE ** This CVE Record has been re…
• CVE-2026-107720fast-jwt provides fast JSON Web Token (JWT) implementation. …7.4