Flaw in Kestrel web server allowed request smuggling, impact depends on hosting setup and application code Microsoft has ...

Microsoft has patched CVE-2025-55315, a critical vulnerability in the ASP.NET Core open source web development framework.

When you need to integrate authorization with procedural code, you're going to need your application's ClaimsPrincipal object so that you can check the user's authorization claims. Here's both how to ...

Take advantage of the built-in support for OpenAPI in ASP.NET Core to automatically document your HTTP endpoints. Minimal APIs are supported too. ASP.NET Core 6 introduced a simplified hosting model ...