RabbitMQ auto-configuration with an SSL bundle disables TLS hostname verification
Spring Boot's RabbitMQ auto-configuration fails to perform TLS hostname verification when the application is configured to use an SSL bundle for RabbitMQ connections. As a result, the client may establish a TLS connection to a RabbitMQ broker presenting a certificate that is otherwise trusted but whose subject does not match the intended broker hostname. The issue affects Spring Boot 4.0.0 through 4.0.5 and 3.5.0 through 3.5.13. Vendor-fixed versions are 4.0.6 and 3.5.14.
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