diff --git a/backend/open_webui/retrieval/utils.py b/backend/open_webui/retrieval/utils.py
index 2db9f47c53..a25452801c 100644
--- a/backend/open_webui/retrieval/utils.py
+++ b/backend/open_webui/retrieval/utils.py
@@ -1374,6 +1374,10 @@ async def get_sources_from_items(
                 'documents': [[doc.get('content') for doc in item.get('docs')]],
                 'metadatas': [[doc.get('metadata') for doc in item.get('docs')]],
             }
+        elif item.get('type') == 'web_search' and item.get('collection_name'):
+            # Trusted server-generated collection; authorized by
+            # filter_accessible_collections below (allowlists web-search-*).
+            collection_names.append(item['collection_name'])
         elif item.get('collection_name'):
             if BYPASS_RETRIEVAL_ACCESS_CONTROL:
                 collection_names.append(item['collection_name'])