Describe the problem/error/question
Forbidden 403 when trying to upload from S3, this works before we upgrade from n8n saas to version 2.30.8
What is the error message (if any)?
Forbidden - perhaps check your credentials? SignatureDoesNotMatchThe request signature we calculated does not match the signature you provided. Check your key and signing method
Please share your workflow/screenshots/recording
(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
⚠️ WARNING ⚠️ If you have sensitive data in your workflow (like API keys), please remove it before sharing.
Share the output returned by the last node
Debug info
core
- n8nVersion: 2.30.8
- platform: cloud saas
- license: enterprise
storage
- error: all
client
- userAgent: mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/150.0.0.0 safari/537.36
Generated at: 2026-07-20T09:25:57.398Z