product · inferred from evidence
SignatureDoesNotMatch
An AWS S3 error code indicating a signature mismatch.
- Supabase Storage S3 API: AWS Go SDK v2 uploads fail with 403 SignatureDoesNotMatch
This was a Supabase-side S3 signature compatibility bug with the Go SDK v2's signing format. Maintainer itslenny confirmed on the thread that it is fully resolved in production, so the latest SDK works without any workaround. Before the fix