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Last analyzed Sep 9, 2026

Language Model Security Database

985 research findings · 1119 evaluated models

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556 entries

Matches every word across titles, descriptions, sources, affected systems, and models.

Semantic Mirror Jailbreak

Published Analyzed Source: arXiv

Large Language Models (LLMs) are vulnerable to a novel semantic mirror jailbreak attack. This attack leverages a genetic algorithm to generate jailbreak prompts that are semantically similar to benign prompts, evading defenses based on semantic similarity metrics. The attack achieves this by optimizing for both semantic similarity to the original question and the ability to elicit harmful responses.

Semantic Mirror Jailbreak: Genetic Algorithm Based Jailbreak Prompts Against Open-source LLMs
Evaluated models: Guanaco 7B, Llama 2 7B Chat, Vicuna 7B

ASCII Art Jailbreak

Published Analyzed Source: arXiv

Large Language Models (LLMs) exhibit vulnerability to a novel jailbreak attack, "ArtPrompt," which leverages the models' poor ability to recognize ASCII art representations of words. By replacing sensitive words in a prompt with their ASCII art equivalents, the attacker bypasses safety filters designed to prevent the generation of harmful content.

Artprompt: Ascii art-based jailbreak attacks against aligned llms
Evaluated models: GPT-3.5 Turbo, GPT-4

Complex Cipher Jailbreak

Published Analyzed Source: arXiv

Large Language Models (LLMs) with advanced reasoning capabilities are vulnerable to jailbreaking attacks using novel, complex, and layered custom encryption schemes. LLMs' ability to decipher these ciphers, exceeding the capabilities of less sophisticated models, enables attackers to bypass existing safety mechanisms by encoding malicious prompts.

When" Competency" in Reasoning Opens the Door to Vulnerability: Jailbreaking LLMs via Novel Complex Ciphers
Evaluated models: Gemini 1.5 Flash, GPT-4o, Llama 3.1 70B Instruct+1 more
  • Gemini 1.5 Flash
  • GPT-4o
  • Llama 3.1 70B Instruct
  • Llama 3.1 8B Instruct

Fast Projected Gradient Jailbreak

Published Analyzed Source: arXiv

Large Language Models (LLMs) are vulnerable to efficient adversarial attacks using Projected Gradient Descent (PGD) on a continuously relaxed input prompt. This attack bypasses existing alignment methods by crafting adversarial prompts that induce the model to produce undesired or harmful outputs, significantly faster than previous state-of-the-art discrete optimization methods. The effectiveness stems from carefully controlling the error introduced by the continuous relaxation of the discrete…

Attacking large language models with projected gradient descent
Evaluated models: Falcon 7B, Falcon 7B Instruct, Vicuna 7B v1.3

Implicit Clue Jailbreak

Published Analyzed Source: arXiv

Large Language Models (LLMs) are vulnerable to an indirect jailbreak attack, termed "Puzzler," which leverages implicit clues instead of explicit malicious intent in prompts. By providing associated behaviors or hints related to a malicious query, Puzzler elicits malicious responses from the LLM, bypassing its safety mechanisms. The attack works by first obtaining "defensive measures" from the LLM against a target malicious action, then querying for the corresponding "offensive measures" that…

Play guessing game with llm: Indirect jailbreak attack with implicit clues
Evaluated models: Gemini Pro, GPT-3.5 Turbo, GPT-4+3 more
  • Gemini Pro
  • GPT-3.5 Turbo
  • GPT-4
  • GPT-4 Turbo
  • Llama 13B
  • Llama 7B

Multi-Turn Contextual Jailbreak

Published Analyzed Source: arXiv

Large Language Models (LLMs) are vulnerable to a multi-round "Contextual Interaction Attack" where a series of benign preliminary questions, crafted to be semantically aligned with a malicious target query, are used to manipulate the LLM's context vector. The autoregressive nature of LLMs causes them to incorporate previous conversation rounds into their generation process, allowing the attacker to prime the model into providing harmful information in response to the final, seemingly benign…

Leveraging the Context through Multi-Round Interactions for Jailbreaking Attacks
Evaluated models: Claude 2, GPT-3.5 Turbo, GPT-4+3 more
  • Claude 2
  • GPT-3.5 Turbo
  • GPT-4
  • Llama 2 7B
  • Mixtral 8x7B
  • Vicuna 7B

RAG Poisoning Jailbreak

Published Analyzed Source: arXiv

Large Language Models (LLMs) utilizing Retrieval Augmented Generation (RAG) are vulnerable to a novel attack vector, termed "RAG Poisoning," where malicious content is injected into the external knowledge base accessed by the LLM via prompt manipulation. This allows attackers to elicit undesirable or malicious outputs from the LLM, bypassing its safety filters. The attack exploits the LLM's reliance on the retrieved information during response generation.

Pandora: Jailbreak gpts by retrieval augmented generation poisoning
Evaluated models: GPT-3.5 Turbo, GPT-4, Mistral 7B

Subconscious LLM Jailbreak

Published Analyzed Source: arXiv

Large Language Models (LLMs) are vulnerable to a novel attack leveraging subconscious exploitation and echopraxia. Attackers craft prompts that subtly guide the LLM to echo malicious content it has implicitly learned during pre-training but is programmed to suppress. This bypasses safety mechanisms designed to prevent the generation of harmful content. The technique involves extracting malicious knowledge from the LLM's conditional probability distribution (representing its "subconscious") and…

Rapid Optimization for Jailbreaking LLMs via Subconscious Exploitation and Echopraxia
Evaluated models: Alpaca 7B, Baichuan 2 7B Chat, Claude 2+6 more
  • Alpaca 7B
  • Baichuan 2 7B Chat
  • Claude 2
  • Falcon 7B Instruct
  • GPT-3.5 Turbo
  • GPT-4
  • Llama 2 13B Chat
  • Llama 2 7B Chat
  • Vicuna 7B

Role-Playing LLM Jailbreaks

Published Analyzed Source: arXiv

A vulnerability exists in several Large Language Models (LLMs) allowing evasion of safety filters through carefully crafted prompts leveraging role-playing scenarios. The vulnerability is exploited by prompting the LLM to adopt a specific persona or scenario (e.g., "You are a helpful assistant in a fantasy world where all actions are permitted") that overrides built-in safety restrictions, resulting in the generation of unsafe or undesirable outputs. The attack is facilitated by structured…

Guard: Role-playing to generate natural-language jailbreakings to test guideline adherence of large language models
Evaluated models: Gemini Vision Pro, GPT-3.5 Turbo, Llama 2 7B+3 more
  • Gemini Vision Pro
  • GPT-3.5 Turbo
  • Llama 2 7B
  • LongChat 7B
  • MiniGPT-v2
  • Vicuna 13B

Multimodal Model Jailbreak

Published Analyzed Source: arXiv

Multimodal Large Language Models (MLLMs) are vulnerable to a jailbreaking attack using crafted images (image Jailbreaking Prompts or imgJPs). These imgJPs, when presented as input alongside malicious prompts, cause the MLLM to bypass safety mechanisms and generate objectionable content, including instructions for harmful activities like identity theft or creation of violent video games. The attack demonstrates both prompt-universality (a single imgJP works across multiple prompts) and, to a…

Jailbreaking attack against multimodal large language model
Evaluated models: InstructBLIP, MiniGPT-4, MiniGPT-v2+3 more
  • InstructBLIP
  • MiniGPT-4
  • MiniGPT-v2
  • Mplug-owl2
  • Vicuna 13B
  • Vicuna 7B

Research methodology

Entries summarize publicly available primary-source security research. Model names reflect only systems explicitly evaluated by the cited paper, and measurements are research-reported unless independent verification is stated.

Discovery and publication are separate: new papers enter a candidate queue, then require human review and explicit approval before publication. Updates follow that review process, not a guaranteed daily publishing schedule. “Last analyzed” is the newest analysis date among published entries; it does not mean that all recent research has been covered.