Microsoft releases emergency patches for critical ASP.NET flaw

Microsoft has released out-of-band (OOB) security updates to patch a critical ASP.NET Core privilege escalation vulnerability ...
The Hacker News

Microsoft Patches Critical ASP.NET Core CVE-2026-40372 Privilege Escalation Bug

"A regression in the Microsoft.AspNetCore.DataProtection 10.0.0-10.0.6 NuGet packages cause the managed authenticated ...

Microsoft issues emergency update for macOS and Linux ASP.NET threat

Microsoft describes ASP.NET Core as a “high-performance” Web development framework for writing .Net apps that run on Windows, ...
InfoWorld

Microsoft issues out-of-band patch for critical security flaw in update to ASP.NET Core

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 ...
Bleeping Computer

Microsoft fixes highest-severity ASP.NET Core flaw ever

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 ...
Visual Studio Magazine

Versioning and Documenting ASP.NET Core Services

Building an API with ASP.NET Core is only half the job. If your API is going to live more than one release cycle, you're going to need to version it. If you have other people building clients for it, ...