Highlights
Information Disclosure: 11 prior fixes. Scrutinize any change in this area.
app/controllers/passwords_controller.rb: most-fixed (18 issues). Treat as high-risk during review.
16 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Insecure Deserialization: Using Marshal for cookie serialization exposes the application to arbitrary object injection, which can lead directly to Remote Code Execution (RCE) via untrusted user-supplied cookies. This was corrected by migrating to JSON serialization.
Auth Bypass: A logic flaw in password resets automatically logged users in after reset, effectively bypassing Multi-Factor Authentication (MFA/TOTP) for compromised or reset accounts.
Denial of Service: Missing boundaries and lack of input structure validation allowed attackers to trigger application crashes or resource exhaustion through unvalidated payload formats, excessive text lengths, or extreme expiration values.