T09 · Insecure Skill Coding Practices
Warning
- Location
scripts/causal_chain_analyzer.py:484- Finding
Unbounded Breadth-First Traversal Enables Resource Exhaustion
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= self.config.max_depth: continue # Check confidence threshold if conf < confidence_threshold: continue incoming = self.reverse_edges.get(node, {}) if not incoming: # Root cause found chains.append(CausalChain( path=path[::-1], confidence=conf )) else: for source, edges in incoming.items(): for edge in edges: edge_conf = edge.get('confidence', 0.5) new_conf = conf * edge_conf if new_conf >= confidence_threshold: queue.append((source, path + [source], new_conf)) ``` ### Technical Analysis The `_find_root_causes_bfs` traversal accepts caller-provided graph structures and enqueues every eligible predecessor path. Each queue entry contains a newly copied path through `path + [source]`, causing both the number and cumulative size of allocated objects to increase rapidly on dense or highly branching graphs. Although `visited_at_depth` is declared, it is never used. The traversal therefore does not deduplicate equivalent states such as the same node reached at the same depth. It also does not prevent a node already present in the current path from being enqueued again, allowing cyclic graphs and self-loops to repeatedly expand until the configured depth limit is reached. The `max_results` configuration field is declared but is not ...[truncated 2018 chars]- Remediation
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