django-components/docs/user_guide/creating_using_components/context_scope.md

Component context and scope

By default, components can access context variables from the parent template, just like templates that are included with the {% include %} tag. Just like with {% include %}, if you don't want the component template to have access to the parent context, add only to the end of the {% component %} tag):

   {% component "calendar" date="2015-06-19" only %}{% endcomponent %}

NOTE: {% csrf_token %} tags need access to the top-level context, and they will not function properly if they are rendered in a component that is called with the only modifier.

Components can also access the outer context in their context methods by accessing the property outer_context.

You can also set context_behavior to isolated to make all components isolated by default. This is useful if you want to make sure that components don't accidentally access the outer context.