Solr Security - Permission read does not work as expected

I enabled security on my solr cloud and added basic authentication and authorization to allow only specific users to read and update the records. What I observed that update works fine but read does not stop from anonymous access.

On digging deeper I saw that RuleBasedAuthorizationPlugin.java has incorrectly defined the read permissions as follows:

read :

," +

It should be /select/* rather than /update/*