WAF handle size body inspection larger than 64 KB

Hi everyone

I want to allow body size inspection WAF less than 100 KB and block when body size larger than 100 KB

But i see Web request body inspection in WAF maximum is 64 KB. How can i achieve the goal

Many thanks.

주제: 보안, 신원 및 규정 준수
태그: AWS WAF
언어: English

nam nguyen

질문됨 4달 전47회 조회

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수락된 답변

Hello.

As of July 2025, the maximum body size that AWS WAF can inspect is 64 KB, so if you want to block body sizes larger than this, you will need to implement this on the application side.

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Riku_Kobayashi

답변함 4달 전

지원 엔지니어

Nihar

검토됨 4달 전

nam nguyen
4달 전
Thanks for the answser. I also try add rule with single header content-length but i seem like not working. May be i need implement on the application

WAF handle size body inspection larger than 64 KB

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