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IDEATOR: Jailbreaking Large Vision-Language Models Using Themselves

As large Vision-Language Models (VLMs) grow in prominence, ensuring their safe deployment has become critical. Recent studies have explored VLM robustness against jailbreak attacks--techniques that exploit model vulnerabilities to elicit harmful outputs. However, the limited availability of diverse multi-modal data has led current approaches to rely heavily on adversarial or manually crafted images derived from harmful text datasets, which may lack effectiveness and diversity across different contexts. In this paper, we propose a novel jailbreak method named IDEATOR, which autonomously generates malicious image-text pairs for black-box jailbreak attacks. IDEATOR is based on the insight that VLMs themselves could serve as powerful red team models for generating multimodal jailbreak prompts. Specifically, IDEATOR uses a VLM to create targeted jailbreak texts and pairs them with jailbreak images generated by a state-of-the-art diffusion model. Our extensive experiments demonstrate IDEATOR's high effectiveness and transferability. Notably, it achieves a 94% success rate in jailbreaking MiniGPT-4 with an average of only 5.34 queries, and high success rates of 82%, 88%, and 75% when transferred to LLaVA, InstructBLIP, and Meta's Chameleon, respectively. IDEATOR uncovers specific vulnerabilities in VLMs under black-box conditions, underscoring the need for improved safety mechanisms.

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