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~ similar to 2606.02530· 20 results

cs.CRRecentMay 6, 2026

You Snooze, You Lose: Automatic Safety Alignment Restoration through Neural Weight Translation

Marco Arazzi, Vignesh Kumar Kembu, Antonino Nocera, Stjepan Picek +1 more

The paper introduces NeWTral, a framework that restores safety alignment to specialized LLM adapters without sacrificing their domain-specific knowledge, achieving a significant reduction in attack su…

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cs.AIRecentMay 28, 2026

Aligned but Fragile: Enhancing LLM Safety Robustness via Zeroth-Order Optimization

Zhihao Liu, Yifan Wu, Jian Lou, Di Wang +2 more

The paper proposes a novel zeroth-order optimization framework to enhance the robustness of LLM safety alignment, showing that few refinement steps can significantly improve safety while maintaining u…

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cs.CLcs.CRRecentMay 1, 2026

ML-Bench&Guard: Policy-Grounded Multilingual Safety Benchmark and Guardrail for Large Language Models

Yunhan Zhao, Zhaorun Chen, Xingjun Ma, Yu-Gang Jiang +1 more

The paper introduces ML-Bench, a policy-grounded multilingual safety benchmark, and ML-Guard, a superior guardrail model that enables culturally and legally aligned safety assessment for LLMs across 1…

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cs.CRcs.AIcs.CLRecentMay 7, 2026

Safety Anchor: Defending Harmful Fine-tuning via Geometric Bottlenecks

Guoxin Lu, Letian Sha, Qing Wang, Peijie Sun +3 more

The paper introduces Safety Bottleneck Regularization (SBR), a novel defense mechanism that anchors LLM safety by constraining the unembedding layer, effectively preventing harmful fine-tuning (HFT) e…

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cs.LGcs.CRRecentJun 2, 2026

When Autoregressive Consistency Hurts Safety Alignment

Bochen Lyu, Yiyang Jia, Xiaohao Cai, Zhanxing Zhu

The paper argues that shallow safety alignment in LLMs is due to autoregressive consistency, a mechanism that allows small harmful inputs to redirect the model's generation to unsafe outputs, necessit…

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cs.LGcs.AIcs.CLRecentMay 30, 2026

MESA: Improving MoE Safety Alignment via Decentralized Expertise

Yitong Sun, Yao Huang, Teng Li, Ranjie Duan +4 more

MESA is a targeted alignment framework that decentralizes safety responsibilities across multiple experts in Mixture-of-Experts (MoE) LLMs using Optimal Transport theory, thereby improving safety robu…

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cs.CRcs.CLRecentApr 9, 2026

The Art of (Mis)alignment: How Fine-Tuning Methods Effectively Misalign and Realign LLMs in Post-Training

Rui Zhang, Hongwei Li, Yun Shen, Xinyue Shen +5 more

The paper investigates how various fine-tuning methods can be used both to intentionally misalign and subsequently realign large language models (LLMs), revealing distinct strengths for attack and def…

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cs.CLcs.CRRecentMay 8, 2026

GLiGuard: Schema-Conditioned Classification for LLM Safeguard

Urchade Zaratiana, Mary Newhauser, George Hurn-Maloney, Ash Lewis

GLiGuard introduces a compact, schema-conditioned bidirectional encoder that achieves state-of-the-art performance in LLM content moderation across multiple safety dimensions while drastically reducin…

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cs.CRcs.LGRecentApr 8, 2026

FedDetox: Robust Federated SLM Alignment via On-Device Data Sanitization

Shunan Zhu, Jiawei Chen, Yonghao Yu, Hideya Ochiai

FedDetox introduces a robust framework that sanitizes toxic data on edge devices during federated learning to maintain the safety alignment of Small Language Models (SLMs) without sacrificing utility.

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cs.CLRecentMay 28, 2026

Configurable Reward Model for Balanced Safety Alignment

Zhengping Jiang, Mehran Khodabandeh, Akash Bharadwaj, Manik Bhandari +4 more

The paper introduces the Configurable Safety Reward Model (CSRM), a novel reward model that can be jointly optimized for calibrated safety compliance and reward modeling, significantly improving LLM s…

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cs.CRcs.SERecentMar 19, 2026

CNT: Safety-oriented Function Reuse across LLMs via Cross-Model Neuron Transfer

Yue Zhao, Yujia Gong, Ruigang Liang, Shenchen Zhu +3 more

The paper introduces Cross-Model Neuron Transfer (CNT), a post-hoc method that efficiently transfers safety-oriented functionalities between different large language models by transferring minimal sub…

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cs.AIcs.CLcs.CRRecentMay 27, 2026

Robust and Efficient Guardrails with Latent Reasoning

Siddharth Sai, Xiaofei Wen, Muhao Chen

The paper introduces COLAGUARD, a novel guardrail model that efficiently transfers multi-step safety reasoning into a continuous latent space, achieving state-of-the-art safety performance with massiv…

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cs.AIcs.CLcs.CRRecentMay 27, 2026

Robust and Efficient Guardrails with Latent Reasoning

Siddharth Sai, Xiaofei Wen, Muhao Chen

The paper introduces COLAGUARD, a novel guardrail model that efficiently transfers multi-step safety reasoning into a continuous latent space, achieving high safety performance with massive improvemen…

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cs.CRcs.AIRecentMay 17, 2026

Ablating Safety: Mechanisms for Removing Alignment in Language Models for Security Applications

Isaac David, Arthur Gervais

The paper proposes Ablating Safety, a controlled protocol for removing safety alignment from language models, demonstrating that targeted de-alignment can significantly boost security performance whil…

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cs.CRcs.AIcs.LGRecentApr 2, 2026

Understanding the Effects of Safety Unalignment on Large Language Models

John T. Halloran

This study compares two methods of safety unalignment (Jailbreak-Tuning and Weight Orthogonalization) across six LLMs and finds that Weight Orthogonalization (WO) significantly enhances malicious capa…

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cs.CRRecentApr 9, 2026

Towards Identification and Intervention of Safety-Critical Parameters in Large Language Models

Weiwei Qi, Zefeng Wu, Tianhang Zheng, Zikang Zhang +3 more

The paper proposes the Expected Safety Impact (ESI) framework to identify safety-critical parameters in LLMs, introducing targeted tuning methods (SET and SPA) to enhance safety and preserve alignment…

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cs.CRRecentMar 18, 2026

The Verifier Tax: Horizon Dependent Safety Success Tradeoffs in Tool Using LLM Agents

Tanmay Sah, Vishal Srivastava, Dolly Sah, Kayden Jordan

The paper analyzes how runtime safety enforcement impacts the performance of multi-step LLM agents, finding that while safety mechanisms can block unsafe actions, they impose a significant performance…

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cs.LGcs.AIcs.CERecentMay 3, 2026

RefusalGuard: Geometry-Preserving Fine-Tuning for Safety in LLMs

Sadia Asif, Mohammad Mohammadi Amiri

The paper introduces RefusalGuard, a novel fine-tuning framework that preserves the geometric structure of safety-relevant representations in LLMs, thereby mitigating the degradation of refusal behavi…

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cs.LGcs.CLRecentMay 28, 2026

CSULoRA: Closest Safe Update Low-Rank Adaptation

Oleksandr Marchenko Breneur, Adelaide Danilov, Aria Nourbakhsh, Salima Lamsiyah

CSULoRA is a post-hoc method that corrects trained LoRA adapters by estimating a safety-aligned subspace and solving a penalized minimum-change problem to attenuate unsafe update directions while pres…

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cs.LGcs.AIcs.CRRecentMay 11, 2026

Leveraging RAG for Training-Free Alignment of LLMs

John T. Halloran

The paper introduces RAG-Pref, a novel, training-free Retrieval Augmented Generation (RAG) method for preference alignment that significantly improves LLM refusal guardrails against agentic attacks wi…

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