most citedGuardReasoner: Towards Reasoning-based LLM Safeguards

2 citations · 2 across the 19 of their papers we have counts for

collaborators

22 papers

cs.CR2026

Last Secure Code Benchmark: Is the Code You Vibe Secure?

Tianyi Wu, Chao Ge, Peng Chen +12

AI coding agents now write much of the code that ships, yet whether that code is secure remains unclear. We introduce the Last Secure Code Benchmark, a comprehensive evaluation of…

cs.CL2026

Membership Inference in Fine-tuned Diffusion Language Models via Token-level Memorization Asymmetry

Shengfang Zhai, Leo Marchyok, Yuling Shi +4

Diffusion language models (DLMs) have recently emerged as an alternative modeling paradigm to autoregressive LMs, offering advantages such as parallel generation and bidirectional…

cs.CV2026

Robustifying Vision-Language Models via Test-Time Prompt Adaptation

Xingyu Zhu, Huanshen Wu, Shuo Wang +4

Pre-trained Vision-Language Models (VLMs) such as CLIP achieve strong zero-shot generalization, but their performance degrades sharply under adversarial perturbations. Existing tes…

cs.CR2026

BadDLM: Backdooring Diffusion Language Models with Diverse Targets

Shengfang Zhai, Xiaoyang Ji, Yuling Shi +6

Diffusion language models (DLMs) have recently emerged as an alternative modeling paradigm to autoregressive (AR) language models, enabling parallel generation and bidirectional co…

cs.CR2026

Hijacking Large Audio-Language Models via Context-Agnostic and Imperceptible Auditory Prompt Injection

Meng Chen, Kun Wang, Li Lu +2

Modern Large audio-language models (LALMs) power intelligent voice interactions by tightly integrating audio and text. This integration, however, expands the attack surface beyond…

cs.CV2026

Gym-V: A Unified Vision Environment System for Agentic Vision Research

Fanqing Meng, Lingxiao Du, Jiawei Gu +9

As agentic systems increasingly rely on reinforcement learning from verifiable rewards, standardized ``gym'' infrastructure has become essential for rapid iteration, reproducibilit…

cs.CR2026

MemPot: Defending Against Memory Extraction Attack with Optimized Honeypots

Yuhao Wang, Shengfang Zhai, Guanghao Jin +3

Large Language Model (LLM)-based agents employ external and internal memory systems to handle complex, goal-oriented tasks, yet this exposes them to severe extraction attacks, and…

cs.CR2026

Secure Code Generation via Online Reinforcement Learning with Vulnerability Reward Model

Tianyi Wu, Mingzhe Du, Yue Liu +4

Large language models (LLMs) are increasingly used in software development, yet their tendency to generate insecure code remains a major barrier to real-world deployment. Existing…

cs.CL2026

Beyond Hard Masks: Progressive Token Evolution for Diffusion Language Models

Linhao Zhong, Linyu Wu, Bozhen Fang +6

Diffusion Language Models (DLMs) offer a promising alternative for language modeling by enabling parallel decoding through iterative refinement. However, most DLMs rely on hard bin…

cs.CR2026

Making Theft Useless: Adulteration-Based Protection of Proprietary Knowledge Graphs in GraphRAG Systems

Weijie Wang, Peizhuo Lv, Yan Wang +7

Graph Retrieval-Augmented Generation (GraphRAG) has emerged as a key technique for enhancing Large Language Models (LLMs) with proprietary Knowledge Graphs (KGs) in knowledge-inten…

cs.IR2025

The Oracle and The Prism: A Decoupled and Efficient Framework for Generative Recommendation Explanation

Jiaheng Zhang, Daqiang Zhang

The integration of Large Language Models (LLMs) into explainable recommendation systems often leads to a performance-efficiency trade-off in end-to-end architectures, where joint o…

cs.AI2025

ReProbe: Efficient Test-Time Scaling of Multi-Step Reasoning by Probing Internal States of Large Language Models

Jingwei Ni, Ekaterina Fadeeva, Tianyi Wu +8

LLMs can solve complex tasks by generating long, multi-step reasoning chains. Test-time scaling (TTS) can further improve performance by sampling multiple variants of intermediate…

cs.CR2025

SWAP: Towards Copyright Auditing of Soft Prompts via Sequential Watermarking

Wenyuan Yang, Yichen Sun, Changzheng Chen +4

Large-scale vision-language models, especially CLIP, have demonstrated remarkable performance across diverse downstream tasks. Soft prompts, as carefully crafted modules that effic…

cs.CL2025

DiffuGuard: How Intrinsic Safety is Lost and Found in Diffusion Large Language Models

Zherui Li, Zheng Nie, Zhenhong Zhou +7

The rapid advancement of Diffusion Large Language Models (dLLMs) introduces unprecedented vulnerabilities that are fundamentally distinct from Autoregressive LLMs, stemming from th…

cs.CR2025

ExtendAttack: Attacking Servers of LRMs via Extending Reasoning

Zhenhao Zhu, Yue Liu, Zhiwei Xu +9

Large Reasoning Models (LRMs) have demonstrated promising performance in complex tasks. However, the resource-consuming reasoning processes may be exploited by attackers to malicio…

cs.LG2025

TrojanTO: Action-Level Backdoor Attacks against Trajectory Optimization Models

Yang Dai, Oubo Ma, Longfei Zhang +6

Recent advances in Trajectory Optimization (TO) models have achieved remarkable success in offline reinforcement learning. However, their vulnerabilities against backdoor attacks a…

cs.CL2025

Efficient Reasoning via Chain of Unconscious Thought

Ruihan Gong, Yue Liu, Wenjie Qu +11

Large Reasoning Models (LRMs) achieve promising performance but compromise token efficiency due to verbose reasoning processes. Unconscious Thought Theory (UTT) posits that complex…

cs.AI2025

GuardReasoner-VL: Safeguarding VLMs via Reinforced Reasoning

Yue Liu, Shengfang Zhai, Mingzhe Du +9

To enhance the safety of VLMs, this paper introduces a novel reasoning-based VLM guard model dubbed GuardReasoner-VL. The core idea is to incentivize the guard model to deliberativ…

cs.CR2025

Geneshift: Impact of different scenario shift on Jailbreaking LLM

Tianyi Wu, Zhiwei Xue, Yue Liu +3

Jailbreak attacks, which aim to cause LLMs to perform unrestricted behaviors, have become a critical and challenging direction in AI safety. Despite achieving the promising attack…

cs.CL2025

Efficient Inference for Large Reasoning Models: A Survey

Yue Liu, Jiaying Wu, Yufei He +11

Large Reasoning Models (LRMs) significantly improve the reasoning ability of Large Language Models (LLMs) by learning to reason, exhibiting promising performance in solving complex…

cs.CL2025

Balancing Truthfulness and Informativeness with Uncertainty-Aware Instruction Fine-Tuning

Tianyi Wu, Jingwei Ni, Bryan Hooi +5

Instruction fine-tuning (IFT) can increase the informativeness of large language models (LLMs), but may reduce their truthfulness. This trade-off arises because IFT steers LLMs to…

cs.CR2025★ 2 cited

GuardReasoner: Towards Reasoning-based LLM Safeguards

Yue Liu, Hongcheng Gao, Shengfang Zhai +9

As LLMs increasingly impact safety-critical applications, ensuring their safety using guardrails remains a key challenge. This paper proposes GuardReasoner, a new safeguard for LLM…