Error
Error Code:
1827
MySQL Error 1827: Invalid Password Hash Format
Description
This error indicates that MySQL encountered a password hash that does not conform to the expected format for the current authentication method or server configuration. It typically occurs during user authentication or when attempting to modify a user's password, signaling an incompatibility in the hashing algorithm or storage method.
Error Message
The password hash doesn't have the expected format.
Known Causes
4 known causesIncompatible Hashing Algorithm
The password might have been hashed using an older or non-standard algorithm that is no longer supported or recognized by the current MySQL server version.
Mismatched Authentication Plugin
The user account might be configured with an authentication plugin (e.g., `mysql_native_password`, `caching_sha2_password`) that doesn't match the format of the provided password hash.
Corrupted Password Data
The password hash stored in the `mysql.user` table might be corrupted or malformed, preventing MySQL from parsing it correctly.
Manual User Table Modification
Directly modifying the `mysql.user` table without using proper SQL commands can lead to incorrectly formatted or invalid password hashes.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service