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~ similar to 2604.06285v1· 20 results

cs.CVcs.AIcs.CRRecentApr 10, 2026

Leave My Images Alone: Preventing Multi-Modal Large Language Models from Analyzing Images via Visual Prompt Injection

Zedian Shao, Hongbin Liu, Yuepeng Hu, Neil Zhenqiang Gong

The paper introduces ImageProtector, a user-side method that embeds an imperceptible perturbation into images to prevent Multi-modal Large Language Models (MLLMs) from analyzing and extracting sensiti…

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cs.CRcs.CVRecentMay 10, 2026

On the Generation and Mitigation of Harmful Geometry in Image-to-3D Models

Yule Liu, Yilong Yang, Jiale Teng, Hanze Jia +10 more

The paper systematically measures the risk of current image-to-3D models generating harmful geometries, finding that these models are effective at reconstruction and existing safeguards are insufficie…

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cs.CRRecentMay 18, 2026

On the Geometric Limits of Transformer Defenses against Obfuscation Attacks: Latent Embedding Collapse & Performance Robustness Gap

Becky Mashaido, Tapadhir Das

The paper demonstrates that high detection performance against obfuscated prompts does not guarantee representational robustness, identifying a phenomenon called latent embedding collapse.

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cs.CRcs.AIcs.CLRecentMay 5, 2026

Exposing LLM Safety Gaps Through Mathematical Encoding:New Attacks and Systematic Analysis

Haoyu Zhang, Mohammad Zandsalimy, Shanu Sushmita

The paper demonstrates that encoding harmful prompts as genuine mathematical problems, rather than just using mathematical formatting, effectively bypasses the safety filters of large language models.

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cs.CRcs.CLRecentJun 2, 2026

PsychoPass: Geometric Profiling of Multi-Turn Adversarial LLM Conversations

Muberra Ozmen, Subhabrata Majumdar

The paper introduces PsychoPass, a framework that analyzes the geometric trajectory of multi-turn conversations in embedding space to detect adversarial intent early, before harmful content is generat…

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cs.CRcs.IRcs.LGRecentMay 13, 2026

VectorSmuggle: Steganographic Exfiltration in Embedding Stores and a Cryptographic Provenance Defense

Jascha Wanger

The paper demonstrates a class of steganographic exfiltration attacks against vector databases by hiding data within embeddings, and proposes VectorPin, a cryptographic provenance protocol to detect s…

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cs.CRcs.AIRecentMar 26, 2026

The System Prompt Is the Attack Surface: How LLM Agent Configuration Shapes Security and Creates Exploitable Vulnerabilities

Ron Litvak

The security of LLM agents is critically dependent on their system prompt configuration, which creates a brittle attack surface that can be exploited by attackers inverting the prompt's core assumptio…

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cs.CVcs.AIcs.CRRecentApr 12, 2026

Toward Accountable AI-Generated Content on Social Platforms: Steganographic Attribution and Multimodal Harm Detection

Xinlei Guan, David Arosemena, Tejaswi Dhandu, Kuan Huang +6 more

The paper proposes an end-to-end forensic pipeline using steganographic attribution and multimodal harm detection to reliably trace and attribute harmful misuse of AI-generated imagery on social platf…

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cs.CVcs.AIcs.LGRecentJun 1, 2026

A Structured Benchmark for Text-Guided Anomaly Detection: When Language Stops Conditioning the Decision

Stefano Samele, Eugenio Lomurno, Teodora Jovanovic, Sanjay Shivakumar Manohar +2 more

The paper introduces a structured benchmark (TGAD) showing that current text-guided anomaly detection models often overstate their language conditioning, as performance significantly degrades when the…

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cs.CRcs.AIcs.CVRecentMay 27, 2026

Disentangling Adversarial Prompts: A Semantic-Graph Defense for Robust LLM Security

Xiang Fang, Wanlong Fang

The paper proposes the Adversarial Prompt Disentanglement (APD) framework, a novel defense mechanism that proactively identifies and neutralizes malicious components in LLM prompts, achieving over 85%…

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cs.CRcs.AIcs.CVRecentMay 27, 2026

Disentangling Adversarial Prompts: A Semantic-Graph Defense for Robust LLM Security

Xiang Fang, Wanlong Fang

The paper proposes the Adversarial Prompt Disentanglement (APD) framework, a novel defense that proactively identifies and neutralizes malicious components in LLM prompts, achieving over 85% reduction…

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cs.CRcs.AIcs.MMRecentMar 23, 2026

Structured Visual Narratives Undermine Safety Alignment in Multimodal Large Language Models

Rui Yang Tan, Yujia Hu, Roy Ka-Wei Lee

This paper introduces ComicJailbreak, a new benchmark demonstrating that structured visual narratives can effectively jailbreak Multimodal Large Language Models (MLLMs), requiring new safety alignment…

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cs.CVcs.AIcs.CRRecentMar 25, 2026

When Understanding Becomes a Risk: Authenticity and Safety Risks in the Emerging Image Generation Paradigm

Ye Leng, Junjie Chu, Mingjie Li, Chenhao Lin +4 more

The paper analyzes that while multimodal large language models (MLLMs) offer superior semantic understanding for image generation, this enhanced capability significantly increases safety risks, partic…

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cs.CLcs.CRRecentMay 26, 2026

Prompt Injection Detection is Regime-Dependent: A Deployment-Aware Evaluation with Interpretable Structural Signals

Akindoyin Akinrele, Shreyank N Gowda

The paper evaluates prompt injection detection in a deployment-aware, multi-regime framework, finding that detection performance is highly dependent on the operational setting and that no single detec…

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cs.CRcs.AIRecentApr 28, 2026

SnapGuard: Lightweight Prompt Injection Detection for Screenshot-Based Web Agents

Mengyao Du, Han Fang, Haokai Ma, Jiahao Chen +3 more

SnapGuard proposes a lightweight, multimodal method to detect prompt injection attacks in screenshot-based web agents by analyzing visual stability and contrast-polarity textual signals, achieving hig…

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cs.CRRecentApr 4, 2026

AttackEval: A Systematic Empirical Study of Prompt Injection Attack Effectiveness Against Large Language Models

Jackson Wang

AttackEval systematically evaluates the effectiveness of 250 prompt injection prompts across ten attack categories, finding that composite and obfuscation attacks are highly effective against current…

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cs.CRRecentMay 3, 2026

Contrastive Privacy: A Semantic Approach to Measuring Privacy of AI-based Sanitization

George Bissias, Eugene Bagdasarian, Brian Neil Levine

The paper introduces 'contrastive privacy,' a formal, model-agnostic, and quantitative method for evaluating the semantic success of AI-based sanitization across multiple media modalities.

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cs.CRcs.CVRecentMay 15, 2026

A Cross-Modal Prompt Injection Attack against Large Vision-Language Models with Image-Only Perturbation

Hao Yang, Zhuo Ma, Yang Liu, Yilong Yang +2 more

The paper introduces CrossMPI, a novel cross-modal prompt injection attack that uses image-only perturbations to steer the interpretation of both textual and visual inputs in Large Vision-Language Mod…

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cs.CRRecentMay 11, 2026

Generate "Normal", Edit Poisoned: Branding Injection via Hint Embedding in Image Editing

Desen Sun, Jason Hon, Howe Wang, Saarth Rajan +2 more

This paper investigates a novel security vulnerability where imperceptible branding hints can be injected into images and subsequently re-rendered onto new objects by generative AI models, proposing b…

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cs.CRcs.CVRecentApr 17, 2026

TwoHamsters: Benchmarking Multi-Concept Compositional Unsafety in Text-to-Image Models

Chaoshuo Zhang, Yibo Liang, Mengke Tian, Chenhao Lin +5 more

This paper introduces TwoHamsters, a new benchmark that rigorously tests Multi-Concept Compositional Unsafety (MCCU) in text-to-image models, demonstrating that current state-of-the-art models and saf…

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