Security Review - OAuth Implementation

Security-focused review of the new OAuth implementation for third-party integrations. John walked through the implementation details.

The current implementation uses OAuth 2.0 with PKCE for mobile clients. Tokens are stored encrypted in the database with AES-256. Refresh tokens expire after 30 days, access tokens after 1 hour.

David identified a potential issue: the redirect URI validation isn't strict enough. An attacker could potentially use open redirects on allowed domains. John will tighten the validation to require exact path matching.

The team also discussed adding support for SAML SSO for enterprise customers. This is a common request but would require significant development effort. Decided to defer to Q2 planning.

All OAuth endpoints were reviewed for rate limiting. Currently only login attempts are rate-limited. Agreeed to add rate limiting to token refresh endpoints as well.