C2 - JWT token was stored in localStorage (XSS-accessible):
- Switch Zustand persist storage from localStorage to sessionStorage
- Token is now scoped to the current tab and cleared on browser close
H5 - docker-compose had unsafe SECRET_KEY fallback:
- Replace ${SECRET_KEY:-change_me_in_production} with :? syntax
- Docker Compose now aborts with a clear error if SECRET_KEY is unset
M1 - Login endpoint had timing leak allowing username enumeration:
- Always call verify_password() regardless of username match
- Use hmac.compare_digest() for constant-time username comparison
- Both checks run every time; attacker cannot distinguish wrong
username from wrong password via response timing