Error
Error Code:
1819
MySQL Error 1819: New Password Invalid
Description
This error occurs when attempting to create or change a MySQL user's password, but the proposed password fails to meet the server's configured security policy requirements. It indicates a violation of rules such as minimum length, required character types, or disallowed patterns.
Error Message
Your password does not satisfy the current policy requirements
Known Causes
4 known causesPassword Too Short
The new password does not meet the minimum length requirement specified by the MySQL server's password validation policy.
Missing Character Types
The password lacks required character categories, such as uppercase letters, lowercase letters, numbers, or special characters, as enforced by the policy.
Contains Disallowed Patterns
The password includes common dictionary words, sequences, or parts of the username that are explicitly forbidden by the server's security policy.
Unaware of Policy Rules
The user attempting the password change is not aware of the specific password validation rules configured on the MySQL server instance.
Solutions
3 solutions available1. Update Password to Meet Policy Requirements easy
Modify your password to comply with the server's password policy.
1
Identify the password policy requirements. These might include minimum length, character types (uppercase, lowercase, numbers, special characters), and avoiding common patterns. You can often find this information in your MySQL server's configuration or by asking your DBA.
2
Choose a new password that adheres to all specified requirements. For example, if the policy requires at least 8 characters, one uppercase, one lowercase, one number, and one special character, a password like 'MyStr0ngP@ss!' would likely be valid.
3
Connect to your MySQL server using a client (e.g., `mysql` command-line client, MySQL Workbench).
mysql -u your_username -p4
Execute the `ALTER USER` statement to change your password. Replace `your_username` with your actual username and `'new_strong_password'` with your newly chosen password.
ALTER USER 'your_username'@'localhost' IDENTIFIED BY 'new_strong_password';5
If you are connecting from a different host, replace `'localhost'` with the appropriate host identifier (e.g., `'%'` for any host, or a specific IP address).
ALTER USER 'your_username'@'%' IDENTIFIED BY 'new_strong_password';6
Verify the password change by attempting to log in again with the new password.
mysql -u your_username -p2. Temporarily Disable Password Policy (for Administrators) medium
Bypass the password policy by temporarily disabling it for the current session or permanently if necessary.
1
Connect to your MySQL server as a user with sufficient privileges (e.g., `root`).
mysql -u root -p2
To temporarily disable the password policy for the current session, set the `validate_password.policy` system variable to `0` (off). This is useful for making quick changes and then re-enabling the policy.
SET GLOBAL validate_password.policy = 0;3
Now, you can change the password to a simpler one (e.g., for testing or if the policy is overly restrictive).
ALTER USER 'your_username'@'localhost' IDENTIFIED BY 'simple_password';4
After changing the password, it's highly recommended to re-enable the password policy. You can set it back to `MEDIUM` or `STRONG` depending on your needs. `MEDIUM` requires length, character types, and no forbidden words. `STRONG` adds length and dictionary checks.
SET GLOBAL validate_password.policy = 'MEDIUM'; -- or 'STRONG'5
Alternatively, to permanently disable the password policy, you would need to edit the MySQL configuration file (`my.cnf` or `my.ini`) and comment out or remove the `validate_password` related settings. Then restart the MySQL server.
6
If you've edited the configuration file, restart the MySQL service. The command to restart varies by operating system.
sudo systemctl restart mysql # For systemd-based systems (e.g., Ubuntu 15.04+, CentOS 7+)7
Or, on older systems:
sudo service mysql restart3. Check and Adjust Password Policy Settings medium
Examine the current password policy and adjust its parameters to be more permissive or to understand its constraints.
1
Connect to your MySQL server as a user with sufficient privileges (e.g., `root`).
mysql -u root -p2
View the current password policy settings. This will show you the minimum length, required character types, and other rules.
SHOW VARIABLES LIKE 'validate_password%';3
Based on the output, you can adjust specific parameters. For example, to lower the minimum length to 6 characters:
SET GLOBAL validate_password.minLength = 6;4
To ensure at least one digit and one special character are required:
SET GLOBAL validate_password.require_numeric = 1;
SET GLOBAL validate_password.require_special_characters = 1;5
If you want to remove the requirement for uppercase or lowercase letters:
SET GLOBAL validate_password.require_uppercase = 0;
SET GLOBAL validate_password.require_lowercase = 0;6
After adjusting the policy, try changing the password again using the `ALTER USER` statement.