gabriel / muse public
fix minor task/fix-presigned-upload-macos #1 / 1
gabriel · 65 days ago · Apr 12, 2026 · Diff

fix: use curl for presigned PUT uploads on macOS

OpenSSL 3.6.x / Python 3.14 on Homebrew has a TLS 1.3 bug that causes SSLV3_ALERT_BAD_RECORD_MAC on direct PUT requests to Cloudflare R2. The bug is in the OpenSSL build, not in our code or R2.

Linux (staging/prod Docker) uses a different OpenSSL build and is unaffected — urllib continues to be used there.

On macOS, dispatch to curl which uses SecureTransport/LibreSSL (the macOS system TLS stack), bypassing the broken Homebrew OpenSSL entirely. No security settings are changed; TLS 1.3 + cert validation still runs via SecureTransport.

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