fix(proxy): allow internal users to view log details

litellm/proxy/_types.py

@@ -592,6 +592,7 @@ class LiteLLMRoutes(enum.Enum):
         "/spend/calculate",
         "/spend/logs",
         "/spend/logs/ui",
+        "/spend/logs/ui/{request_id}",
         "/spend/logs/session/ui",
         "/cost/estimate",
     ]

litellm/proxy/spend_tracking/spend_management_endpoints.py

@@ -3577,7 +3577,14 @@ async def _assert_user_can_view_request_id(
         include=None,
     )
     if row is None:
-        return
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail={
+                "error": "Not authorized to view spend log for request_id={}".format(
+                    request_id
+                )
+            },
+        )
 
     if row.user is not None and row.user == user_api_key_dict.user_id:
         return

tests/test_litellm/proxy/auth/test_route_checks.py

@@ -1296,6 +1296,38 @@ ADMIN_VIEWER_LOGS_PAGE_ROUTES = [
 ]
 
 
+@pytest.mark.parametrize(
+    "user_role",
+    [
+        LitellmUserRoles.INTERNAL_USER,
+        LitellmUserRoles.INTERNAL_USER_VIEW_ONLY,
+    ],
+)
+def test_internal_user_can_access_spend_log_detail(
+    user_role: LitellmUserRoles,
+) -> None:
+    user_obj = LiteLLM_UserTable(
+        user_id="internal_user",
+        user_email="user@example.com",
+        user_role=user_role.value,
+    )
+    valid_token = UserAPIKeyAuth(
+        user_id="internal_user",
+        user_role=user_role.value,
+    )
+    request = MagicMock(spec=Request)
+    request.query_params = {}
+
+    RouteChecks.non_proxy_admin_allowed_routes_check(
+        user_obj=user_obj,
+        _user_role=user_role.value,
+        route="/spend/logs/ui/request-id",
+        request=request,
+        valid_token=valid_token,
+        request_data={},
+    )
+
+
 @pytest.mark.parametrize("route", ADMIN_VIEWER_LOGS_PAGE_ROUTES)
 def test_proxy_admin_viewer_can_access_logs_page_endpoints(route):
     """

tests/test_litellm/proxy/spend_tracking/test_spend_management_endpoints.py

@@ -340,6 +340,77 @@ def test_ui_view_request_response_forbids_non_admin_without_db(client, monkeypat
         app.dependency_overrides.pop(ps.user_api_key_auth, None)
 
 
+def test_ui_view_request_response_forbids_missing_ownership_row(
+    client: TestClient,
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    mock_prisma = MagicMock()
+    mock_prisma.db.litellm_spendlogs.find_unique = AsyncMock(return_value=None)
+    payload_logger = MagicMock()
+    payload_logger.get_request_response_payload = AsyncMock(
+        return_value={"response": "private response"}
+    )
+    get_custom_loggers = MagicMock(return_value=[payload_logger])
+
+    monkeypatch.setattr("litellm.proxy.proxy_server.prisma_client", mock_prisma)
+    monkeypatch.setattr(
+        litellm.logging_callback_manager,
+        "get_active_additional_logging_utils_from_custom_logger",
+        get_custom_loggers,
+    )
+    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/missing-request",
+            headers={"Authorization": "Bearer sk-test"},
+        )
+        assert response.status_code == 403
+        get_custom_loggers.assert_not_called()
+        payload_logger.get_request_response_payload.assert_not_awaited()
+    finally:
+        app.dependency_overrides.pop(ps.user_api_key_auth, None)
+
+
+def test_ui_view_request_response_forbids_different_user(
+    client: TestClient,
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    spend_log_row = MagicMock()
+    spend_log_row.user = "user_2"
+    spend_log_row.team_id = None
+    mock_prisma = MagicMock()
+    mock_prisma.db.litellm_spendlogs.find_unique = AsyncMock(return_value=spend_log_row)
+    payload_logger = MagicMock()
+    payload_logger.get_request_response_payload = AsyncMock(
+        return_value={"response": "private response"}
+    )
+    get_custom_loggers = MagicMock(return_value=[payload_logger])
+
+    monkeypatch.setattr("litellm.proxy.proxy_server.prisma_client", mock_prisma)
+    monkeypatch.setattr(
+        litellm.logging_callback_manager,
+        "get_active_additional_logging_utils_from_custom_logger",
+        get_custom_loggers,
+    )
+    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/other-user-request",
+            headers={"Authorization": "Bearer sk-test"},
+        )
+        assert response.status_code == 403
+        get_custom_loggers.assert_not_called()
+        payload_logger.get_request_response_payload.assert_not_awaited()
+    finally:
+        app.dependency_overrides.pop(ps.user_api_key_auth, None)
+
+
 ignored_keys = [
     "request_id",
     "session_id",