CVE-2026-107715 — The Mechanize library is used for automating interaction with websites.
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.
CVSS v3.1 base metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:NMedium severity
Band computed from the CVSS base score, not the source's own label — so it means the same thing across every feed.
AV
Network
Attack Vector
AC
High
Attack Complexity
PR
None
Privileges Required
UI
None
User Interaction
S
Changed
Scope
C
High
Confidentiality
I
None
Integrity
A
None
Availability
References
- advisory[email protected]https://github.com/sparklemotion/mechanize/commit/02a1235842d6eda8d4a5a3d8f13aba2cecf52e4f
- advisory[email protected]https://github.com/sparklemotion/mechanize/commit/94e0902867296be804f36eccbb47acf7d5018745
- advisory[email protected]https://github.com/sparklemotion/mechanize/commit/ac49abf2869297d83c3b11bbfb8b18e63b588c95
- advisory[email protected]https://github.com/sparklemotion/mechanize/pull/676
- advisory[email protected]https://github.com/sparklemotion/mechanize/releases/tag/v2.14.1
- advisory[email protected]https://github.com/sparklemotion/mechanize/security/advisories/GHSA-2mwr-xjcg-37j7
Related threats
same CWE or vendorCVE-2026-107714 — The Mechanize library is used for automating interaction with websites.
CVE-2026-107714 · 2h ago
CVE-2026-107399 — The Mechanize library is used for automating interaction with websites.
CVE-2026-107399 · 2h ago
CVE-2026-84274 — IBM Guardium Data Protection 12.2.2 is affected by a sensitive information exposure vulnerability.
CVE-2026-84274 · 4h ago
CVE-2026-107383 — MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases.
CVE-2026-107383 · 5h ago
CVE-2026-105452 — Docker Sandboxes could forward a client-supplied credential alongside a credential injected by the host egress proxy.
CVE-2026-105452 · 5h ago
PraisonAI: ContextGatherer include resolution permits absolute and traversal reads outside the workspace
CVE-2026-61431 · 6h ago