Password showing in cart??

Unfortunately, there is no direct option available inorder to achieve your requirement.

However, you can achieve your requirement by adding the below code in your child theme’s functions.php.

add_action('wp_footer', 'th3ed45_footer_frontend_action', 999);
function th3ed45_footer_frontend_action(){
	?>
	<script>
		(function($){
			
			var field_label = 'field_label'; // Update your field label
			
			var field_label = field_label.replace(/\s+/g,"");
			var target = 'dl.variation dd.variation-'+ field_label + ' p';
			
			$(document.body).on('wc_fragments_refreshed', function(){
				$(target).each(function(){
					var f_value = $(this).text();
					var password = f_value.replace(/./g, '*');
					$(this).html( "<p>"+password+"</p>" );					
				});
			});			
						
			$(document).ready(function(){
				$(target).each(function(){
					var f_value = $(this).text();
					var password = f_value.replace(/./g, '*');
					$(this).html( "<p>"+password+"</p>" );					
				});
			});
			
			$(document).on('updated_checkout', function(){
				$(target).each(function(){
					var f_value = $(this).text();
					var password = f_value.replace(/./g, '*');
					$(this).html( "<p>"+password+"</p>" );					
				});
			});			
		
		})(jQuery);		
	</script>
	<?php
}

The code snippet is pure javascript and you need to update field_label in the above code with your password field label.

We hope this will help.

Thank you!