diff --git a/api/controllers/console/app/workflow.py b/api/controllers/console/app/workflow.py
index 8dcffb166..e840c0028 100644
--- a/api/controllers/console/app/workflow.py
+++ b/api/controllers/console/app/workflow.py
@@ -72,6 +72,7 @@ class DraftWorkflowApi(Resource):
         Get draft workflow
         """
         # The role of the current user in the ta table must be admin, owner, or editor
+        assert isinstance(current_user, Account)
         if not current_user.is_editor:
             raise Forbidden()
 
@@ -94,6 +95,7 @@ class DraftWorkflowApi(Resource):
         Sync draft workflow
         """
         # The role of the current user in the ta table must be admin, owner, or editor
+        assert isinstance(current_user, Account)
         if not current_user.is_editor:
             raise Forbidden()
 
@@ -171,6 +173,7 @@ class AdvancedChatDraftWorkflowRunApi(Resource):
         Run draft workflow
         """
         # The role of the current user in the ta table must be admin, owner, or editor
+        assert isinstance(current_user, Account)
         if not current_user.is_editor:
             raise Forbidden()
 
@@ -218,13 +221,12 @@ class AdvancedChatDraftRunIterationNodeApi(Resource):
         """
         Run draft workflow iteration node
         """
+        if not isinstance(current_user, Account):
+            raise Forbidden()
         # The role of the current user in the ta table must be admin, owner, or editor
         if not current_user.is_editor:
             raise Forbidden()
 
-        if not isinstance(current_user, Account):
-            raise Forbidden()
-
         parser = reqparse.RequestParser()
         parser.add_argument("inputs", type=dict, location="json")
         args = parser.parse_args()
@@ -256,11 +258,10 @@ class WorkflowDraftRunIterationNodeApi(Resource):
         Run draft workflow iteration node
         """
         # The role of the current user in the ta table must be admin, owner, or editor
-        if not current_user.is_editor:
-            raise Forbidden()
-
         if not isinstance(current_user, Account):
             raise Forbidden()
+        if not current_user.is_editor:
+            raise Forbidden()
 
         parser = reqparse.RequestParser()
         parser.add_argument("inputs", type=dict, location="json")
@@ -292,12 +293,12 @@ class AdvancedChatDraftRunLoopNodeApi(Resource):
         """
         Run draft workflow loop node
         """
-        # The role of the current user in the ta table must be admin, owner, or editor
-        if not current_user.is_editor:
-            raise Forbidden()
 
         if not isinstance(current_user, Account):
             raise Forbidden()
+        # The role of the current user in the ta table must be admin, owner, or editor
+        if not current_user.is_editor:
+            raise Forbidden()
 
         parser = reqparse.RequestParser()
         parser.add_argument("inputs", type=dict, location="json")
@@ -329,12 +330,12 @@ class WorkflowDraftRunLoopNodeApi(Resource):
         """
         Run draft workflow loop node
         """
-        # The role of the current user in the ta table must be admin, owner, or editor
-        if not current_user.is_editor:
-            raise Forbidden()
 
         if not isinstance(current_user, Account):
             raise Forbidden()
+        # The role of the current user in the ta table must be admin, owner, or editor
+        if not current_user.is_editor:
+            raise Forbidden()
 
         parser = reqparse.RequestParser()
         parser.add_argument("inputs", type=dict, location="json")
@@ -366,12 +367,12 @@ class DraftWorkflowRunApi(Resource):
         """
         Run draft workflow
         """
-        # The role of the current user in the ta table must be admin, owner, or editor
-        if not current_user.is_editor:
-            raise Forbidden()
 
         if not isinstance(current_user, Account):
             raise Forbidden()
+        # The role of the current user in the ta table must be admin, owner, or editor
+        if not current_user.is_editor:
+            raise Forbidden()
 
         parser = reqparse.RequestParser()
         parser.add_argument("inputs", type=dict, required=True, nullable=False, location="json")
@@ -405,6 +406,9 @@ class WorkflowTaskStopApi(Resource):
         """
         Stop workflow task
         """
+
+        if not isinstance(current_user, Account):
+            raise Forbidden()
         # The role of the current user in the ta table must be admin, owner, or editor
         if not current_user.is_editor:
             raise Forbidden()
@@ -424,12 +428,12 @@ class DraftWorkflowNodeRunApi(Resource):
         """
         Run draft workflow node
         """
-        # The role of the current user in the ta table must be admin, owner, or editor
-        if not current_user.is_editor:
-            raise Forbidden()
 
         if not isinstance(current_user, Account):
             raise Forbidden()
+        # The role of the current user in the ta table must be admin, owner, or editor
+        if not current_user.is_editor:
+            raise Forbidden()
 
         parser = reqparse.RequestParser()
         parser.add_argument("inputs", type=dict, required=True, nullable=False, location="json")
@@ -472,6 +476,9 @@ class PublishedWorkflowApi(Resource):
         """
         Get published workflow
         """
+
+        if not isinstance(current_user, Account):
+            raise Forbidden()
         # The role of the current user in the ta table must be admin, owner, or editor
         if not current_user.is_editor:
             raise Forbidden()
@@ -491,13 +498,12 @@ class PublishedWorkflowApi(Resource):
         """
         Publish workflow
         """
+        if not isinstance(current_user, Account):
+            raise Forbidden()
         # The role of the current user in the ta table must be admin, owner, or editor
         if not current_user.is_editor:
             raise Forbidden()
 
-        if not isinstance(current_user, Account):
-            raise Forbidden()
-
         parser = reqparse.RequestParser()
         parser.add_argument("marked_name", type=str, required=False, default="", location="json")
         parser.add_argument("marked_comment", type=str, required=False, default="", location="json")
@@ -541,6 +547,9 @@ class DefaultBlockConfigsApi(Resource):
         """
         Get default block config
         """
+
+        if not isinstance(current_user, Account):
+            raise Forbidden()
         # The role of the current user in the ta table must be admin, owner, or editor
         if not current_user.is_editor:
             raise Forbidden()
@@ -559,13 +568,12 @@ class DefaultBlockConfigApi(Resource):
         """
         Get default block config
         """
+        if not isinstance(current_user, Account):
+            raise Forbidden()
         # The role of the current user in the ta table must be admin, owner, or editor
         if not current_user.is_editor:
             raise Forbidden()
 
-        if not isinstance(current_user, Account):
-            raise Forbidden()
-
         parser = reqparse.RequestParser()
         parser.add_argument("q", type=str, location="args")
         args = parser.parse_args()
@@ -595,13 +603,12 @@ class ConvertToWorkflowApi(Resource):
         Convert expert mode of chatbot app to workflow mode
         Convert Completion App to Workflow App
         """
+        if not isinstance(current_user, Account):
+            raise Forbidden()
         # The role of the current user in the ta table must be admin, owner, or editor
         if not current_user.is_editor:
             raise Forbidden()
 
-        if not isinstance(current_user, Account):
-            raise Forbidden()
-
         if request.data:
             parser = reqparse.RequestParser()
             parser.add_argument("name", type=str, required=False, nullable=True, location="json")
@@ -645,6 +652,9 @@ class PublishedAllWorkflowApi(Resource):
         """
         Get published workflows
         """
+
+        if not isinstance(current_user, Account):
+            raise Forbidden()
         if not current_user.is_editor:
             raise Forbidden()
 
@@ -693,13 +703,12 @@ class WorkflowByIdApi(Resource):
         """
         Update workflow attributes
         """
+        if not isinstance(current_user, Account):
+            raise Forbidden()
         # Check permission
         if not current_user.is_editor:
             raise Forbidden()
 
-        if not isinstance(current_user, Account):
-            raise Forbidden()
-
         parser = reqparse.RequestParser()
         parser.add_argument("marked_name", type=str, required=False, location="json")
         parser.add_argument("marked_comment", type=str, required=False, location="json")
@@ -750,13 +759,12 @@ class WorkflowByIdApi(Resource):
         """
         Delete workflow
         """
+        if not isinstance(current_user, Account):
+            raise Forbidden()
         # Check permission
         if not current_user.is_editor:
             raise Forbidden()
 
-        if not isinstance(current_user, Account):
-            raise Forbidden()
-
         workflow_service = WorkflowService()
 
         # Create a session and manage the transaction
diff --git a/api/controllers/console/app/workflow_draft_variable.py b/api/controllers/console/app/workflow_draft_variable.py
index 4e625db24..a0b73f7e0 100644
--- a/api/controllers/console/app/workflow_draft_variable.py
+++ b/api/controllers/console/app/workflow_draft_variable.py
@@ -21,6 +21,7 @@ from factories.file_factory import build_from_mapping, build_from_mappings
 from factories.variable_factory import build_segment_with_type
 from libs.login import current_user, login_required
 from models import App, AppMode, db
+from models.account import Account
 from models.workflow import WorkflowDraftVariable
 from services.workflow_draft_variable_service import WorkflowDraftVariableList, WorkflowDraftVariableService
 from services.workflow_service import WorkflowService
@@ -135,6 +136,7 @@ def _api_prerequisite(f):
     @account_initialization_required
     @get_app_model(mode=[AppMode.ADVANCED_CHAT, AppMode.WORKFLOW])
     def wrapper(*args, **kwargs):
+        assert isinstance(current_user, Account)
         if not current_user.is_editor:
             raise Forbidden()
         return f(*args, **kwargs)
diff --git a/api/controllers/console/app/wraps.py b/api/controllers/console/app/wraps.py
index 132dc1f96..c7e300279 100644
--- a/api/controllers/console/app/wraps.py
+++ b/api/controllers/console/app/wraps.py
@@ -6,9 +6,11 @@ from controllers.console.app.error import AppNotFoundError
 from extensions.ext_database import db
 from libs.login import current_user
 from models import App, AppMode
+from models.account import Account
 
 
 def _load_app_model(app_id: str) -> Optional[App]:
+    assert isinstance(current_user, Account)
     app_model = (
         db.session.query(App)
         .where(App.id == app_id, App.tenant_id == current_user.current_tenant_id, App.status == "normal")
diff --git a/api/controllers/console/explore/workflow.py b/api/controllers/console/explore/workflow.py
index 3d872fc1f..c1848ceed 100644
--- a/api/controllers/console/explore/workflow.py
+++ b/api/controllers/console/explore/workflow.py
@@ -43,7 +43,7 @@ class InstalledAppWorkflowRunApi(InstalledAppResource):
         parser.add_argument("inputs", type=dict, required=True, nullable=False, location="json")
         parser.add_argument("files", type=list, required=False, location="json")
         args = parser.parse_args()
-
+        assert current_user is not None
         try:
             response = AppGenerateService.generate(
                 app_model=app_model, user=current_user, args=args, invoke_from=InvokeFrom.EXPLORE, streaming=True
@@ -76,6 +76,7 @@ class InstalledAppWorkflowTaskStopApi(InstalledAppResource):
         app_mode = AppMode.value_of(app_model.mode)
         if app_mode != AppMode.WORKFLOW:
             raise NotWorkflowAppError()
+        assert current_user is not None
 
         AppQueueManager.set_stop_flag(task_id, InvokeFrom.EXPLORE, current_user.id)
 
diff --git a/api/controllers/console/workspace/load_balancing_config.py b/api/controllers/console/workspace/load_balancing_config.py
index 2a54511bf..7c1bc7c07 100644
--- a/api/controllers/console/workspace/load_balancing_config.py
+++ b/api/controllers/console/workspace/load_balancing_config.py
@@ -6,7 +6,7 @@ from controllers.console.wraps import account_initialization_required, setup_req
 from core.model_runtime.entities.model_entities import ModelType
 from core.model_runtime.errors.validate import CredentialsValidateFailedError
 from libs.login import current_user, login_required
-from models.account import TenantAccountRole
+from models.account import Account, TenantAccountRole
 from services.model_load_balancing_service import ModelLoadBalancingService
 
 
@@ -15,10 +15,12 @@ class LoadBalancingCredentialsValidateApi(Resource):
     @login_required
     @account_initialization_required
     def post(self, provider: str):
+        assert isinstance(current_user, Account)
         if not TenantAccountRole.is_privileged_role(current_user.current_role):
             raise Forbidden()
 
         tenant_id = current_user.current_tenant_id
+        assert tenant_id is not None
 
         parser = reqparse.RequestParser()
         parser.add_argument("model", type=str, required=True, nullable=False, location="json")
@@ -64,10 +66,12 @@ class LoadBalancingConfigCredentialsValidateApi(Resource):
     @login_required
     @account_initialization_required
     def post(self, provider: str, config_id: str):
+        assert isinstance(current_user, Account)
         if not TenantAccountRole.is_privileged_role(current_user.current_role):
             raise Forbidden()
 
         tenant_id = current_user.current_tenant_id
+        assert tenant_id is not None
 
         parser = reqparse.RequestParser()
         parser.add_argument("model", type=str, required=True, nullable=False, location="json")
diff --git a/api/controllers/service_api/app/annotation.py b/api/controllers/service_api/app/annotation.py
index 6bc94af8c..9038bda11 100644
--- a/api/controllers/service_api/app/annotation.py
+++ b/api/controllers/service_api/app/annotation.py
@@ -10,6 +10,7 @@ from controllers.service_api.wraps import validate_app_token
 from extensions.ext_redis import redis_client
 from fields.annotation_fields import annotation_fields, build_annotation_model
 from libs.login import current_user
+from models.account import Account
 from models.model import App
 from services.annotation_service import AppAnnotationService
 
@@ -163,6 +164,7 @@ class AnnotationUpdateDeleteApi(Resource):
     @service_api_ns.marshal_with(build_annotation_model(service_api_ns))
     def put(self, app_model: App, annotation_id):
         """Update an existing annotation."""
+        assert isinstance(current_user, Account)
         if not current_user.is_editor:
             raise Forbidden()
 
@@ -185,6 +187,8 @@ class AnnotationUpdateDeleteApi(Resource):
     @validate_app_token
     def delete(self, app_model: App, annotation_id):
         """Delete an annotation."""
+        assert isinstance(current_user, Account)
+
         if not current_user.is_editor:
             raise Forbidden()
 
diff --git a/api/controllers/service_api/dataset/dataset.py b/api/controllers/service_api/dataset/dataset.py
index c486b0480..7b74c961b 100644
--- a/api/controllers/service_api/dataset/dataset.py
+++ b/api/controllers/service_api/dataset/dataset.py
@@ -18,6 +18,7 @@ from core.provider_manager import ProviderManager
 from fields.dataset_fields import dataset_detail_fields
 from fields.tag_fields import build_dataset_tag_fields
 from libs.login import current_user
+from models.account import Account
 from models.dataset import Dataset, DatasetPermissionEnum
 from services.dataset_service import DatasetPermissionService, DatasetService, DocumentService
 from services.entities.knowledge_entities.knowledge_entities import RetrievalModel
@@ -213,7 +214,10 @@ class DatasetListApi(DatasetApiResource):
         )
         # check embedding setting
         provider_manager = ProviderManager()
-        configurations = provider_manager.get_configurations(tenant_id=current_user.current_tenant_id)
+        assert isinstance(current_user, Account)
+        cid = current_user.current_tenant_id
+        assert cid is not None
+        configurations = provider_manager.get_configurations(tenant_id=cid)
 
         embedding_models = configurations.get_models(model_type=ModelType.TEXT_EMBEDDING, only_active=True)
 
@@ -266,6 +270,7 @@ class DatasetListApi(DatasetApiResource):
             )
 
         try:
+            assert isinstance(current_user, Account)
             dataset = DatasetService.create_empty_dataset(
                 tenant_id=tenant_id,
                 name=args["name"],
@@ -319,7 +324,10 @@ class DatasetApi(DatasetApiResource):
 
         # check embedding setting
         provider_manager = ProviderManager()
-        configurations = provider_manager.get_configurations(tenant_id=current_user.current_tenant_id)
+        assert isinstance(current_user, Account)
+        cid = current_user.current_tenant_id
+        assert cid is not None
+        configurations = provider_manager.get_configurations(tenant_id=cid)
 
         embedding_models = configurations.get_models(model_type=ModelType.TEXT_EMBEDDING, only_active=True)
 
@@ -391,6 +399,7 @@ class DatasetApi(DatasetApiResource):
             raise NotFound("Dataset not found.")
 
         result_data = marshal(dataset, dataset_detail_fields)
+        assert isinstance(current_user, Account)
         tenant_id = current_user.current_tenant_id
 
         if data.get("partial_member_list") and data.get("permission") == "partial_members":
@@ -532,7 +541,10 @@ class DatasetTagsApi(DatasetApiResource):
     @service_api_ns.marshal_with(build_dataset_tag_fields(service_api_ns))
     def get(self, _, dataset_id):
         """Get all knowledge type tags."""
-        tags = TagService.get_tags("knowledge", current_user.current_tenant_id)
+        assert isinstance(current_user, Account)
+        cid = current_user.current_tenant_id
+        assert cid is not None
+        tags = TagService.get_tags("knowledge", cid)
 
         return tags, 200
 
@@ -550,6 +562,7 @@ class DatasetTagsApi(DatasetApiResource):
     @validate_dataset_token
     def post(self, _, dataset_id):
         """Add a knowledge type tag."""
+        assert isinstance(current_user, Account)
         if not (current_user.is_editor or current_user.is_dataset_editor):
             raise Forbidden()
 
@@ -573,6 +586,7 @@ class DatasetTagsApi(DatasetApiResource):
     @service_api_ns.marshal_with(build_dataset_tag_fields(service_api_ns))
     @validate_dataset_token
     def patch(self, _, dataset_id):
+        assert isinstance(current_user, Account)
         if not (current_user.is_editor or current_user.is_dataset_editor):
             raise Forbidden()
 
@@ -599,6 +613,7 @@ class DatasetTagsApi(DatasetApiResource):
     @validate_dataset_token
     def delete(self, _, dataset_id):
         """Delete a knowledge type tag."""
+        assert isinstance(current_user, Account)
         if not current_user.is_editor:
             raise Forbidden()
         args = tag_delete_parser.parse_args()
@@ -622,6 +637,7 @@ class DatasetTagBindingApi(DatasetApiResource):
     @validate_dataset_token
     def post(self, _, dataset_id):
         # The role of the current user in the ta table must be admin, owner, editor, or dataset_operator
+        assert isinstance(current_user, Account)
         if not (current_user.is_editor or current_user.is_dataset_editor):
             raise Forbidden()
 
@@ -647,6 +663,7 @@ class DatasetTagUnbindingApi(DatasetApiResource):
     @validate_dataset_token
     def post(self, _, dataset_id):
         # The role of the current user in the ta table must be admin, owner, editor, or dataset_operator
+        assert isinstance(current_user, Account)
         if not (current_user.is_editor or current_user.is_dataset_editor):
             raise Forbidden()
 
@@ -672,6 +689,8 @@ class DatasetTagsBindingStatusApi(DatasetApiResource):
     def get(self, _, *args, **kwargs):
         """Get all knowledge type tags."""
         dataset_id = kwargs.get("dataset_id")
+        assert isinstance(current_user, Account)
+        assert current_user.current_tenant_id is not None
         tags = TagService.get_tags_by_target_id("knowledge", current_user.current_tenant_id, str(dataset_id))
         tags_list = [{"id": tag.id, "name": tag.name} for tag in tags]
         response = {"data": tags_list, "total": len(tags)}
diff --git a/api/libs/login.py b/api/libs/login.py
index e3a7fe294..711d16e3b 100644
--- a/api/libs/login.py
+++ b/api/libs/login.py
@@ -1,5 +1,5 @@
 from functools import wraps
-from typing import Any
+from typing import Union, cast
 
 from flask import current_app, g, has_request_context, request
 from flask_login.config import EXEMPT_METHODS  # type: ignore
@@ -11,7 +11,7 @@ from models.model import EndUser
 
 #: A proxy for the current user. If no user is logged in, this will be an
 #: anonymous user
-current_user: Any = LocalProxy(lambda: _get_user())
+current_user = cast(Union[Account, EndUser, None], LocalProxy(lambda: _get_user()))
 
 
 def login_required(func):
@@ -52,7 +52,7 @@ def login_required(func):
     def decorated_view(*args, **kwargs):
         if request.method in EXEMPT_METHODS or dify_config.LOGIN_DISABLED:
             pass
-        elif not current_user.is_authenticated:
+        elif current_user is not None and not current_user.is_authenticated:
             return current_app.login_manager.unauthorized()  # type: ignore
 
         # flask 1.x compatibility