Supabase incident
S3 endpoints for keys with special characters broken
Started
July 16, 2026 at 05:55 PM UTC
Duration
53 min
Resolved
July 16, 2026 at 06:49 PM UTC
Updates timeline
- Identified
We have identified an issue where S3 endpoints for keys with special characters will be broken. We are actively investigating the correct mitigation for this issue.
- Identified
A likely mitigation has been identified and we are discussing the proper implementation method.
- Identified
We have implemented a PR rollback to mitigate this issue. We will actively monitor its progress
- Resolved
This incident has been resolved. A recent API Gateway deployment altered how certain special characters in S3 object key paths were encoded before reaching storage, causing signature verification failures (403) for affected requests. The change has been reverted and issue is now fixed.
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