What does HRESULT 0x87AF1A03 (SQLITE_E_IOERR_AUTH) mean?

SQLITE_E_IOERR_AUTH

SQLITE_E_IOERR_AUTH is reserved for extensions and is not used by the SQLite core according to current SQLite documentation.

What to check for SQLITE_E_IOERR_AUTH

• Identify custom VFS, encryption, authentication, or storage extensions attached to the connection.
• Inspect extension-specific logs and error mapping rather than assuming a standard SQLite authorization failure.
• Capture the exact database open flags and connection configuration for a reproducible test.

SELECT sqlite_version();

SQLite: SQLITE_IOERR_AUTH

SQLite: Extended Result Codes

SQLite: VFS interface

Diagnostic discriminator: Treat this extended code as extension-defined evidence rather than a normal SQLite-core I/O diagnosis. Reproduce it in the same extension/VFS path before attributing it to filesystem authorization.