cr_auth_plugin_cannot_load
Easy Fix
MySQL · Connector / Client Library
MySQL client error 2059: AUTH PLUGIN CANNOT LOAD.
Quick Answer
Error code CR_AUTH_PLUGIN_CANNOT_LOAD on your MySQL Connector / Client Library means: MySQL client error 2059: AUTH PLUGIN CANNOT LOAD.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Capture client and server logs for CR_AUTH_PLUGIN_CANNOT_LOAD, including host, port, TLS mode, and statement context.
2
Re-check account/role bindings, tenant scope, and credential freshness before retrying.
3
Validate auth configuration in code and environment variables against the current deployment.
4
Rotate credentials if needed and run a least-privilege permission audit for this operation.
5
Track CR_AUTH_PLUGIN_CANNOT_LOAD frequency by environment to detect regressions early.
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
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