- CORS: remove allow_origins=["*"]; restrict to ALLOWED_ORIGINS env var
(comma-separated list); default is no cross-origin access. Removed
allow_credentials=True and method/header wildcards.
- Security headers middleware: add X-Content-Type-Options, X-Frame-Options,
X-XSS-Protection, Referrer-Policy, Strict-Transport-Security to all
responses.
- users.py: guard POST /api/users so only users with role="admin" can
create new accounts (prevents privilege escalation by non-admin roles).
- auth.py: remove raw exception detail from Azure AD 500 response to
avoid leaking internal error messages / stack traces to clients.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
twothatit
bc9aa6624f