Anonymous users cannot change passwords
Production Risk
High — indicates anonymous accounts exist, which is a security vulnerability.
ER_PASSWORD_ANONYMOUS_USER (1131, SQLSTATE HY000) is raised when an anonymous MySQL user (connected without a username) attempts to change a password. Anonymous accounts should not exist in production.
- 1Server was installed without running mysql_secure_installation
- 2Anonymous account exists in the mysql.user table
- 3Client connected without supplying a username
-- Connected as anonymous user:
SET PASSWORD = PASSWORD('newpass');expected output
ERROR 1131 (HY000): You are using MySQL as an anonymous user and anonymous users are not allowed to change passwords
Fix
Remove anonymous accounts and run mysql_secure_installation
WHEN Anonymous accounts exist on the server.
DELETE FROM mysql.user WHERE User = ''; FLUSH PRIVILEGES;
Why this works
Removing anonymous accounts forces all connections to authenticate with a named user, eliminating this error entirely.
✕ Allow anonymous MySQL users in production
Anonymous accounts are a serious security risk; any client can connect without authentication.
MySQL 8.0 — 1131 ER_PASSWORD_ANONYMOUS_USER
Content generated with AI assistance and reviewed for accuracy. Found an error? hello@errcodes.dev