diff --git a/src/documents/tests/test_api_tasks.py b/src/documents/tests/test_api_tasks.py
index aee080900..ba55f0e5d 100644
--- a/src/documents/tests/test_api_tasks.py
+++ b/src/documents/tests/test_api_tasks.py
@@ -578,6 +578,66 @@ class TestSummary:
         assert response.status_code == status.HTTP_400_BAD_REQUEST
         assert "days" in response.data
 
+    def test_days_capped_at_365(self, admin_client: APIClient) -> None:
+        """?days= above 365 is silently clamped to 365 so tasks older than a year are excluded."""
+        old_task = PaperlessTaskFactory(task_type=PaperlessTask.TaskType.CONSUME_FILE)
+        PaperlessTask.objects.filter(pk=old_task.pk).update(
+            date_created=timezone.now() - timedelta(days=400),
+        )
+
+        response = admin_client.get(ENDPOINT + "summary/", {"days": 10000})
+
+        assert response.status_code == status.HTTP_200_OK
+        assert len(response.data) == 0
+
+
+@pytest.mark.django_db()
+class TestSummaryPermissions:
+    def test_monitoring_user_can_access_summary(
+        self,
+        user_client: APIClient,
+        regular_user,
+    ) -> None:
+        """A user with view_system_status but no document permissions can access summary/."""
+        regular_user.user_permissions.add(
+            Permission.objects.get(codename="view_system_status"),
+        )
+
+        response = user_client.get(ENDPOINT + "summary/")
+
+        assert response.status_code == status.HTTP_200_OK
+
+    def test_monitoring_user_sees_all_tasks(
+        self,
+        user_client: APIClient,
+        regular_user,
+        admin_user,
+    ) -> None:
+        """Monitoring user sees aggregate data for all tasks, not just unowned ones."""
+        regular_user.user_permissions.add(
+            Permission.objects.get(codename="view_system_status"),
+        )
+        PaperlessTaskFactory(
+            owner=admin_user,
+            task_type=PaperlessTask.TaskType.CONSUME_FILE,
+            status=PaperlessTask.Status.SUCCESS,
+        )
+
+        response = user_client.get(ENDPOINT + "summary/")
+
+        assert response.status_code == status.HTTP_200_OK
+        total = sum(item["total_count"] for item in response.data)
+        assert total == 1
+
+    def test_unauthenticated_cannot_access_summary(
+        self,
+        rest_api_client: APIClient,
+    ) -> None:
+        """Unauthenticated requests to summary/ return 401."""
+        response = rest_api_client.get(ENDPOINT + "summary/")
+
+        assert response.status_code == status.HTTP_401_UNAUTHORIZED
+
 
 @pytest.mark.django_db()
 class TestActive:
diff --git a/src/documents/views.py b/src/documents/views.py
index 51b1abe96..6d08a0658 100644
--- a/src/documents/views.py
+++ b/src/documents/views.py
@@ -3946,18 +3946,28 @@ class TasksViewSet(ReadOnlyModelViewSet[PaperlessTask]):
         count = tasks.update(acknowledged=True)
         return Response({"result": count})
 
+    def get_permissions(self):
+        if self.action == "summary" and has_system_status_permission(
+            getattr(self.request, "user", None),
+        ):
+            return [IsAuthenticated()]
+        return super().get_permissions()
+
     @action(methods=["get"], detail=False)
     def summary(self, request):
         """Aggregated task statistics per task_type over the last N days (default 30)."""
         try:
-            days = max(1, int(request.query_params.get("days", 30)))
+            days = min(365, max(1, int(request.query_params.get("days", 30))))
         except (TypeError, ValueError):
             return Response(
                 {"days": "Must be a positive integer."},
                 status=status.HTTP_400_BAD_REQUEST,
             )
         cutoff = timezone.now() - timedelta(days=days)
-        queryset = self.get_queryset().filter(date_created__gte=cutoff)
+        if has_system_status_permission(request.user):
+            queryset = PaperlessTask.objects.filter(date_created__gte=cutoff)
+        else:
+            queryset = self.get_queryset().filter(date_created__gte=cutoff)
 
         data = queryset.values("task_type").annotate(
             total_count=Count("id"),