fix(proxy): reject non-admin spend log detail when DB is unavailable

Non-admins previously skipped RBAC when prisma_client was None but could
still read payloads from custom loggers. Return 403 unless admin view.
Add test_ui_view_request_response_forbids_non_admin_without_db.

Made-with: Cursor

litellm/proxy/spend_tracking/spend_management_endpoints.py

@@ -2070,12 +2070,21 @@ async def ui_view_request_response_for_request_id(
     from litellm.proxy.proxy_server import prisma_client
 
     if not _is_admin_view_safe(user_api_key_dict=user_api_key_dict):
-        if prisma_client is not None:
-            await _assert_user_can_view_request_id(
-                prisma_client=prisma_client,
-                user_api_key_dict=user_api_key_dict,
-                request_id=request_id,
+        if prisma_client is None:
+            raise HTTPException(
+                status_code=status.HTTP_403_FORBIDDEN,
+                detail={
+                    "error": (
+                        "Cannot authorize spend log access without a database "
+                        "connection. Connect a database or use a proxy admin key."
+                    )
+                },
             )
+        await _assert_user_can_view_request_id(
+            prisma_client=prisma_client,
+            user_api_key_dict=user_api_key_dict,
+            request_id=request_id,
+        )
 
     custom_loggers = (
         litellm.logging_callback_manager.get_active_additional_logging_utils_from_custom_logger()

tests/test_litellm/proxy/spend_tracking/test_spend_management_endpoints.py

@@ -318,6 +318,28 @@ async def test_assert_user_can_view_request_id_rejects_both_users_none():
     assert exc_info.value.status_code == 403
 
 
+def test_ui_view_request_response_forbids_non_admin_without_db(client, monkeypatch):
+    """
+    Without prisma, non-admins cannot be authorized to read request/response
+    payloads (including from custom loggers); do not skip RBAC silently.
+    """
+    monkeypatch.setattr("litellm.proxy.proxy_server.prisma_client", None)
+    app.dependency_overrides[ps.user_api_key_auth] = lambda: UserAPIKeyAuth(
+        user_role=LitellmUserRoles.INTERNAL_USER,
+        user_id="user_1",
+    )
+    try:
+        response = client.get(
+            "/spend/logs/ui/req-no-db",
+            headers={"Authorization": "Bearer sk-test"},
+        )
+        assert response.status_code == 403
+        body = response.json()
+        assert "database" in str(body).lower()
+    finally:
+        app.dependency_overrides.pop(ps.user_api_key_auth, None)
+
+
 ignored_keys = [
     "request_id",
     "session_id",