diff --git a/cms/djangoapps/contentstore/rest_api/v1/views/home.py b/cms/djangoapps/contentstore/rest_api/v1/views/home.py
index 95723020c11f..92aceea78a81 100644
--- a/cms/djangoapps/contentstore/rest_api/v1/views/home.py
+++ b/cms/djangoapps/contentstore/rest_api/v1/views/home.py
@@ -3,9 +3,12 @@
 import edx_api_doc_tools as apidocs
 from django.conf import settings
 from organizations import api as org_api
+from rest_framework.permissions import IsAuthenticated
 from rest_framework.request import Request
 from rest_framework.response import Response
 from rest_framework.views import APIView
+from edx_rest_framework_extensions.auth.jwt.authentication import JwtAuthentication
+from edx_rest_framework_extensions.auth.session.authentication import SessionAuthenticationAllowInactiveUser
 
 from openedx.core.lib.api.view_utils import view_auth_classes
 
@@ -99,11 +102,13 @@ def get(self, request: Request):
         return Response(serializer.data)
 
 
-@view_auth_classes(is_authenticated=True)
 class HomePageCoursesView(APIView):
     """
     View for getting all courses and libraries available to the logged in user.
     """
+    authentication_classes = (JwtAuthentication, SessionAuthenticationAllowInactiveUser)
+    permission_classes = (IsAuthenticated,)
+    serializer_class = CourseHomeTabSerializer
     @apidocs.schema(
         parameters=[
             apidocs.string_parameter(
@@ -170,7 +175,7 @@ def get(self, request: Request):
             "archived_courses": archived_courses,
             "in_process_course_actions": in_process_course_actions,
         }
-        serializer = CourseHomeTabSerializer(courses_context)
+        serializer = self.serializer_class(courses_context)
         return Response(serializer.data)
 
 
diff --git a/cms/djangoapps/contentstore/rest_api/v1/views/tests/test_home.py b/cms/djangoapps/contentstore/rest_api/v1/views/tests/test_home.py
index a155ceb235a4..1c0f57b37081 100644
--- a/cms/djangoapps/contentstore/rest_api/v1/views/tests/test_home.py
+++ b/cms/djangoapps/contentstore/rest_api/v1/views/tests/test_home.py
@@ -7,8 +7,9 @@
 import ddt
 import pytz
 from django.conf import settings
-from django.test import override_settings
+from django.test import TestCase, override_settings
 from django.urls import reverse
+from rest_framework.test import APIClient
 from opaque_keys.edx.locator import LibraryLocatorV2
 from openedx_content import api as content_api
 from organizations.tests.factories import OrganizationFactory
@@ -18,6 +19,7 @@
 from cms.djangoapps.contentstore.tests.utils import CourseTestCase
 from cms.djangoapps.modulestore_migrator import api as migrator_api
 from cms.djangoapps.modulestore_migrator.data import CompositionLevel, RepeatHandlingStrategy
+from common.djangoapps.student.tests.factories import UserFactory
 from openedx.core.djangoapps.content.course_overviews.tests.factories import CourseOverviewFactory
 from openedx.core.djangoapps.content_libraries import api as lib_api
 
@@ -402,3 +404,52 @@ def test_home_page_libraries_response(self):
 
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertDictEqual(expected_response, response.json())
+
+
+class HomePageCoursesViewPermissionsTest(TestCase):
+    """
+    ADR 0026 – permission regression tests for HomePageCoursesView.
+
+    Verifies that the explicit permission_classes = (IsAuthenticated,) enforces
+    the same access rules previously set by the @view_auth_classes(is_authenticated=True)
+    decorator.
+    """
+
+    def setUp(self):
+        super().setUp()
+        self.client = APIClient()
+        self.url = reverse("cms.djangoapps.contentstore:v1:courses")
+        self.user = UserFactory.create()
+        self.staff_user = UserFactory.create(is_staff=True)
+
+    def test_unauthenticated_request_returns_401(self):
+        """
+        Unauthenticated request (no credentials) must be rejected with 401.
+
+        Before ADR 0026: enforced by @view_auth_classes(is_authenticated=True).
+        After ADR 0026: enforced by permission_classes = (IsAuthenticated,).
+        """
+        response = self.client.get(self.url)
+        self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)
+
+    def test_authenticated_user_gets_200(self):
+        """
+        Any authenticated user (not necessarily staff) must receive 200.
+
+        HomePageCoursesView only requires authentication — no staff role needed.
+        The view returns an empty course list for users with no assigned courses.
+        """
+        self.client.force_authenticate(user=self.user)
+        response = self.client.get(self.url)
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+
+    def test_staff_user_gets_200(self):
+        """Staff user must also receive 200 (staff is a superset of authenticated)."""
+        self.client.force_authenticate(user=self.staff_user)
+        response = self.client.get(self.url)
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+
+    def test_post_by_unauthenticated_returns_401(self):
+        """Non-GET methods also enforce authentication — POST without credentials is 401."""
+        response = self.client.post(self.url, data={})
+        self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)