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Ting Zhang

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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
Book Open access Aug 2026

AgentChaos: Chaos Engineering for Agent Systems via Programmatic Fault Injection

Evaluations across agent systems, benchmarks, and backbone LLMs under 65 fault configurations show that all systems degrade under fault injection, suggesting that robustness depends on system implementation rather than model capability.

Gou Tan, Zhensu Sun, Jie-Ke Shi et al. · 6 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. · 2 citations
Preprint Aug 2026

CoSA: Context-Aware Severity Assessment via Context Analysis with Large Language Models

Experiments on real-world vulnerabilities show that CoSA consistently outperforms function-level and pure-LLM baselines, suggesting that explicit, metric-oriented repository context retrieval is crucial for practical and reliable automated severity assessment.

Jin-Feng Jiang, Yi-Kun Li, Cheng-Ran Yang et al. · 0 citations

Vul4Py: Benchmarking Automated Vulnerability Repair in Python with Paired Exploit and Functional Oracles

Vul4Py is presented, a Python AVR benchmark in which every entry carries a paired oracle: an exploit oracle that must fail on the vulnerable revision and pass on the fixed one, together with a project-native pytest functional oracle that must pass on both.

Bui Tan, Ting Zhang, Ferdian Thung et al. · 2 citations

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