The latest version of Microsoft’s web application development framework brings excellent new capabilities to middleware, minimal API apps, and more. Here are the highlights. A major part of ...

HybridCache is a new API in .NET 9 that brings additional features, benefits, and ease to caching in ASP.NET Core. Here’s how to take advantage of it. Caching is a proven strategy for improving ...

Earlier this week, Microsoft patched a vulnerability that was flagged with the "highest ever" severity rating received by an ASP.NET Core security flaw. This HTTP request smuggling bug (CVE-2025-55315 ...

The Kestrel web server flaw allows request smuggling attacks, but the actual risk depends on the application code and deployment. Microsoft has patched a critical vulnerability in ASP.NET Core that ...

Patching is not enough: applications embedding the insecure library will need to be rebuilt, and affected tokens and cookies expired. Developers are advised to check their applications after Microsoft ...

Microsoft has released out-of-band (OOB) security updates to patch a critical ASP.NET Core privilege escalation vulnerability. The security flaw (tracked as CVE-2026-40372) was found in the ASP.NET ...