Author

Yuheng Yieh

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Preprint Sep 2026

VulContextBench: A Benchmark for Security Context Retrieval in Coding Agents

Vulnerability-detection benchmarks score the verdict an agent reaches, not the evidence it gathered. A model that recalls a CVE from pretraining therefore scores the same as one that traced the data flow. We study a task where this difference matters, deciding whether a commit introduces a vulnerability. Instead of sco...

Yi-Kun Li, Jin-Feng Jiang, Yuheng Yieh et al. · 0 citations

Jul 2026

Graph Is the Verifier: Agentic Reinforcement Learning for Interprocedural Vulnerability Detection

VulAgentRL is proposed, an agentic RL framework for interprocedural vulnerability detection built on a Code Property Graph (CPG), which outperforms state-of-the-art baselines, including frontier models, on the strict pair-wise-correct metric while issuing fewer tool calls, and its advantage persists on an out-of-distri...

Yi-Kun Li, Ting Zhang, Jia-Kun Liu et al. · arXiv.org · 2 citations