Blurred distinction between OAuth authentication and authorization
6/10 MediumOAuth 2.0 is fundamentally for authorization (permissions), not authentication (identity), but developers frequently misuse it for authentication. This conceptual confusion leads to security vulnerabilities and architectural mistakes that compound during production rollouts.
Sources
- What is going on with OAuth 2.0? And why you should not use it for authentication. - Securing
- Oauth 2.0: A Comprehensive Guide for 2025 - シャードコーダー
- Access Tokens: The Thing...
- What is going on with OAuth 2.0? And why you should not use it for ...
- Oauth 2.0 Common Security...
- Oauth 2.0: A Comprehensive Guide for 2025
- Weitere Einträge...
- What is MSAL and How Does It Work? - Keyhole Software
Collection History
Query: “What are the most common pain points with MSAL for developers in 2025?”4/7/2026
Understanding the source of authentication is crucial, and Developers must have a clear understanding of authentication sources and identity flows.
Query: “What are the most common pain points with OAuth 2.0 for developers in 2025?”3/31/2026
OAuth 2.0 is about authorization, not authentication, and many issues begin when this distinction is blurred.
Created: 3/31/2026Updated: 4/7/2026