Automatic CSRF protection based on Fetch Metadata headers

· · Aug. 4, 2026, 10:37 a.m.
software development ASP.NET Core web-security CSRF-Protection
Summary
This blog post discusses the new Cross-Site Request Forgery (CSRF) protection feature in ASP.NET Core that leverages Fetch Metadata HTTP headers as an alternative to traditional antiforgery tokens, detailing its implementation and benefits.
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