Go's UUID NewV7 leaks predictable bytes in WASM browsers
When compiled to WebAssembly, Go's uuid.NewV7 routinely produces UUIDs with the third segment fixed at “7000”. The constant reduces entropy, breaking the cryptographic guarantees of version‑7 UUIDs and potentially exposing applications to collision or tracking attacks. The bug appears in Go 1.27rc1 and is tracked in the Go repository.