Highlights
Auth Bypass: 1 prior fix. Scrutinize any change in this area.
backend/api/thirdpartyauth/controller.js: most-fixed (1 issue). Treat as high-risk during review.
1 high-severity fix in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Auth Bypass: The application previously transmitted the raw PKCE code verifier as the code challenge, effectively bypassing the security guarantees of the PKCE flow and exposing the authentication process to interception risks.