#s3

1. 
   aws

   How a CloudFront Custom Error Page Leaked JWTs to S3: A Case Study

   A pen-test curl found CloudFront forwarding `Authorization` headers to the S3 error-page bucket, where S3 reflected every JWT back in its XML error response. Two lines of Terraform closed it across sixteen distributions.

   NH Nedim Hadzimahmutovic Aug 13, 2026 · 12 min

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