diff --git a/changelogs/fragments/keycloak-authentication-none-executions.yml b/changelogs/fragments/keycloak-authentication-none-executions.yml
new file mode 100644
index 0000000000..ca089346fc
--- /dev/null
+++ b/changelogs/fragments/keycloak-authentication-none-executions.yml
@@ -0,0 +1,5 @@
+bugfixes:
+  - keycloak_authentication - fix ``TypeError`` crash when a flow is defined without
+    ``authenticationExecutions``
+    (https://github.com/ansible-collections/community.general/issues/11547,
+    https://github.com/ansible-collections/community.general/pull/11548).
diff --git a/plugins/modules/keycloak_authentication.py b/plugins/modules/keycloak_authentication.py
index 1678f46f85..0c4fba36d5 100644
--- a/plugins/modules/keycloak_authentication.py
+++ b/plugins/modules/keycloak_authentication.py
@@ -273,7 +273,7 @@ def create_or_update_executions(kc, config, realm="master"):
         after = ""
         before = ""
         execution = None
-        if "authenticationExecutions" in config:
+        if config.get("authenticationExecutions") is not None:
             # Get existing executions on the Keycloak server for this alias
             existing_executions = kc.get_executions_representation(config, realm=realm)
             for new_exec_index, new_exec in enumerate(config["authenticationExecutions"], start=0):