Unable to log in with MySQL 8.0.11; caching_sha2_password authentication method unknown to the client

[ibennetch]

With MySQL 8.0.11 I'm unable to log in with users that had been working fine under previous versions (at least 8.0.0, perhaps even more recent than that).

mysqli_real_connect(): The server requested authentication method unknown to the client [caching_sha2_password]

mysqli_real_connect(): (HY000/2054): The server requested authentication method unknown to the client

See also https://dev.mysql.com/doc/refman/8.0/en/authentication-plugins.html

I'm using QA_4_8.

[ibennetch]

See also https://stackoverflow.com/questions/49948350/phpmyadmin-on-mysql-8-0

[ibennetch]

Possibly related: #14217

[ibennetch]

A point release seems like a bad time to make changes to the authentication protocols. I've been testing with 8.0.4-rc which works fine, and now that 8.0.11 is out it causes problems.

[Gemorroj]

https://bugs.php.net/bug.php?id=76243

[ozeer]

I met this issue a few days before, is there anyone who solve this problem? thanks a lot~

[MauricioFauth]

There is not much we can do about it right now, as apparently PHP still does not support the caching_sha2_password authentication method.

However, I was able to connect successfully using other authentication methods such as mysql_native_password and sha256_password.

[szabacsik]

https://stackoverflow.com/questions/49948350/phpmyadmin-on-mysql-8-0/50437307#50437307