URI routing from CLI

I'm encountering an issue with a route when calling it from the CLI. I think this may very well be a feature rather than a bug!
I have a cli method which expects 3 parameters all as strings. This is the route:

PHP Code:

$routes->cli('cli/postbyid/(:segment)/(:segment)/(:any)', 'Cli::postbyid/$1/$2/$3'); 


By and large this works, except when the third string contains characters that normally wouldn't be permitted by ar URI. For example:

Code:

php index.php cli param1 param2 param3(b)

The brackets in the third parameter cause an exception to be thrown:

Code:

CodeIgniter\HTTP\Exceptions\BadRequestException: The URI you submitted has disallowed characters: "param3(b)"

I can see that this is correct behaviour for security reasons when specifying URIs, but a CLI parameter isn't a URI.
I've tried adding a custom placeholder permitting *any* characters at all, but this still throws the same error as I suspect it is still restricted by config/App.php. Hopefully I've explained this in a way that it can be understood. I think CI is performing as designed, but is creating an unnecessary restriction for CLI access. I suspect the solution is for CLI access to ignore character restrictions on URIs, or that any custom placeholder should not be restricted by the characters specified in the config.

Edit: I'm using CI 4.6.0

This is the expected behavior. Defining a CLI route only specifies that the route can be accessed via the command line; it does not prevent other routes from pointing to the same Controller::method.

If you expect non-standard characters in your parameters, it's recommended to URL-encode them, just as you would in a regular web application.

Thank you, I can see why allowing this behaviour might be considered a security risk. As you say, I think encoding the parameter before calling is the solution.