Answer
ASP.NET Core enforces limits on request size, form size, field count, and upload sizes. It aborts oversized requests and streams bodies to prevent memory exhaustion.
Quick Answer
MaxRequestBodySize in Kestrel (default 30MB) and IIS limits prevent clients from sending oversized bodies. Per-action overrides: [RequestSizeLimit(bytes)] increases or [DisableRequestSizeLimit] removes the limit for specific actions. The body is also limited to not be buffered unless you explicitly enable request body buffering (EnableBuffering()).
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ