diff --git a/, b/,
new file mode 100644
index 000000000..e69de29bb
diff --git a/services/ui_backend_service/api/run.py b/services/ui_backend_service/api/run.py
index a73c3c587..e0a477942 100644
--- a/services/ui_backend_service/api/run.py
+++ b/services/ui_backend_service/api/run.py
@@ -100,6 +100,10 @@ async def get_all_runs(self, request):
         # due to lack of pg statistics on JSONB fields. To battle this, first execute
         # subquery of ordered list from runs_v3 table in and filter by tags on outer query.
         # This needs more research in the future to further improve performance.
+        _, limit, offset, _, _, _ = pagination_query(request)
+
+        # Prevent very large payloads
+        limit = min(limit, 100)
         builtin_conditions, _ = builtin_conditions_query(request)
         has_tag_filter = len([s for s in builtin_conditions if 'tags||system_tags' in s]) > 0
         if has_tag_filter: