diff --git a/frappe/__init__.py b/frappe/__init__.py
index e32b04dccb..f7208035e5 100644
--- a/frappe/__init__.py
+++ b/frappe/__init__.py
@@ -570,7 +570,7 @@ def get_user():
 
 def get_roles(username=None) -> list[str]:
 	"""Returns roles of current user."""
-	if not local.session:
+	if not local.session or not local.session.user:
 		return ["Guest"]
 	import frappe.permissions
 
diff --git a/frappe/permissions.py b/frappe/permissions.py
index 2bee75d50c..91517e774f 100644
--- a/frappe/permissions.py
+++ b/frappe/permissions.py
@@ -413,7 +413,7 @@ def get_roles(user=None, with_standard=True):
 	if not user:
 		user = frappe.session.user
 
-	if user == "Guest":
+	if user == "Guest" or not user:
 		return ["Guest"]
 
 	def get():