Fix: AWS CloudFront Returns 403
Verify OAC/OAI is attached and bucket policy updated
CloudFront 403 is usually an S3 origin permission, an OAC/OAI misconfig, or a WAF rule blocking the request.
Frequently Asked Questions
What causes AWS CloudFront Returns 403?
CloudFront 403 is usually an S3 origin permission, an OAC/OAI misconfig, or a WAF rule blocking the request.
How to fix AWS CloudFront Returns 403?
Check the origin — for S3, verify Origin Access Control and bucket policy. If WAF is attached, inspect sampled requests for a matched rule before tweaking origin config.
Example fix from Kintify Fix
Input: CloudFront returns 403 for a valid S3 object
Output: Check the origin — for S3, verify Origin Access Control and bucket policy. If WAF is attached, inspect sampled requests for a matched rule before tweaking origin config.
Used by developers debugging real production systems