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WAF handle size body inspection larger than 64 KB

0

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.

Topics
Security, Identity, & Compliance
Tags
AWS WAF
Language
English

asked a year ago141 views

1 Answer
0
Accepted Answer

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.

EXPERT

answered a year ago

AWS
SUPPORT ENGINEER

reviewed a year ago

  • nam nguyen
    a year ago

    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

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