diff --git a/CveXplore/core/database_maintenance/sources_process.py b/CveXplore/core/database_maintenance/sources_process.py
index f1d0eca58..3030ac16c 100644
--- a/CveXplore/core/database_maintenance/sources_process.py
+++ b/CveXplore/core/database_maintenance/sources_process.py
@@ -540,6 +540,8 @@ def process_the_item(self, item: dict = None):
             cve["vulnerable_configuration_stems"] = []
             cve["configurations"] = item["cve"]["configurations"]
             for node in item["cve"]["configurations"]:
+                if "nodes" not in node:
+                    continue
                 for cpe in node["nodes"]:
                     if "cpeMatch" in cpe:
                         for cpeuri in cpe["cpeMatch"]: