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Last analyzed Sep 9, 2026

Language Model Security Database

985 research findings · 1119 evaluated models

Filtered research findings

80 entries

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

Stage-Sequential Agent Escalation

Published Analyzed Source: arXiv

Agentic Large Language Model (LLM) systems utilizing persistent memory, Retrieval-Augmented Generation (RAG) pipelines, and external tool connectors are vulnerable to Logic-layer Prompt Control Injection (LPCI). An attacker can inject obfuscated (e.g., encoded, structurally nested, or semantically reframed) payloads into external memory stores or RAG documents. These payloads bypass conventional inference-time plaintext content filters, persist across session boundaries, and remain dormant…

LAAF: Logic-layer Automated Attack Framework A Systematic Red-Teaming Methodology for LPCI Vulnerabilities in Agentic Large Language Model Systems
Evaluated models: GPT-4o Mini, Claude 3 Haiku, Llama 3.1 70B Instruct+2 more
  • GPT-4o Mini
  • Claude 3 Haiku
  • Llama 3.1 70B Instruct
  • Gemini 2.0 Flash
  • Mixtral 8x7B Instruct

Autonomous Agent Tool RCE

Published Analyzed Source: arXiv

The OpenClaw autonomous agent framework lacks execution sandboxing, running agents directly on the host machine with the disk and system privileges of the host user. This architecture allows attackers to achieve Remote Code Execution (RCE) and arbitrary data exfiltration via Indirect Prompt Injection. By embedding malicious instructions within external data sources (e.g., scraped web pages or uploaded documents), an attacker can hijack the agent's planning capabilities to sequentially chain…

Uncovering Security Threats and Architecting Defenses in Autonomous Agents: A Case Study of OpenClaw
Evaluated models: Not reported

Agent Lifecycle Compound Threats

Published Analyzed Source: arXiv

OpenClaw is vulnerable to persistent memory poisoning, allowing an attacker to manipulate the agent's long-term memory store (MEMORY.md) via prompt injection. Because the autonomous agent continuously integrates this memory file as context for all subsequent reasoning and task planning, injected payloads act as durable behavioral constraints. This allows an attacker to persistently alter the agent's core policy, manipulate tool selection, and hijack future sessions without any further…

Taming openclaw: Security analysis and mitigation of autonomous llm agent threats
Evaluated models: Not reported

Frontier LLM Safety Collapse

Published Analyzed Source: arXiv

Internal Safety Collapse (ISC) is a vulnerability in frontier Large Language Models (LLMs) where models autonomously generate highly restricted, harmful content while executing structurally legitimate professional workflows. The vulnerability triggers when a model infers that generating sensitive data is a functional requirement to complete an otherwise benign task. By nesting harmful content generation inside standard execution constraints (e.g., resolving a schema validation error in a…

Internal Safety Collapse in Frontier Large Language Models
Evaluated models: Gemini 3 Pro, Grok 4.1 Fast, Claude Sonnet 4.5+1 more
  • Gemini 3 Pro
  • Grok 4.1 Fast
  • Claude Sonnet 4.5
  • GPT-5.2

Embodied Action Jailbreak

Published Analyzed Source: arXiv

Embodied Large Language Models (LLMs) used for real-world agent planning are vulnerable to Action-level Manipulation (dubbed "Blindfold"), a jailbreak technique that bypasses semantic-level safety filters by exploiting the models' limited spatial and causal reasoning regarding physical consequences. Attackers can use an adversarial proxy LLM to decompose a semantically harmful intent into a sequence of individually benign primitive actions. To evade advanced semantic correlation checks…

Jailbreaking Embodied LLMs via Action-level Manipulation
Evaluated models: GPT-4o, GPT-4 Turbo, GPT-4o Mini+5 more
  • GPT-4o
  • GPT-4 Turbo
  • GPT-4o Mini
  • Claude 3.5 Sonnet
  • Llama 3.1 8B
  • DeepSeek R1 Distill Qwen 14B
  • Gemma 3 27B IT
  • Phi-4 14B

Adaptive Agent Tool Injection

Published Analyzed Source: arXiv

Agentic LLMs integrated with external data services (e.g., Model Context Protocol, MCP) are vulnerable to Adaptive Indirect Prompt Injection (IPI) attacks. When an agent queries external servers, attackers can inject malicious payloads into the retrieved content to hijack the agent's reasoning process and force the execution of high-authority tools. Unlike traditional static prompt injections, this vulnerability dynamically exploits the agent's internal logic audit. By using Markovian…

AdapTools: Adaptive Tool-based Indirect Prompt Injection Attacks on Agentic LLMs
Evaluated models: GPT-4.1, DeepSeek R1, Gemini 2.5 Flash+3 more
  • GPT-4.1
  • DeepSeek R1
  • Gemini 2.5 Flash
  • Qwen 3 8B
  • Llama 3.1 8B
  • Mistral 8B

Thought Virus Network Infection

Published Analyzed Source: arXiv

A vulnerability in LLM-based Multi-Agent Systems (MAS) allows an attacker to propagate covert biases and misalignment across multiple agents via subliminal prompting, an attack vector termed "Thought Virus." By injecting a seemingly benign, semantically unrelated token (such as a specific 3-digit number) into the prompt of a single compromised agent, an attacker can induce a specific targeted behavior (e.g., outputting a specific target concept or decreasing factual truthfulness). This induced…

Thought Virus: Viral Misalignment via Subliminal Prompting in Multi-Agent Systems
Evaluated models: Llama 3.1 8B, Qwen 2.5 7B

Role-Confusion Prompt Injection via Forged Reasoning

Published Analyzed Source: arXiv

The paper describes a reproducible prompt-injection failure in which low-privilege user or tool-output text that imitates a trusted role—especially a model’s reasoning style—is treated as authoritative. Its zero-shot, black-box “CoT Forgery” evaluation injects fabricated reasoning into user prompts and retrieved webpage/tool output. The authors report 60% average attack success on StrongREJECT and 56–70% success in an agent data-exfiltration evaluation, versus near-zero or substantially lower…

Prompt Injection as Role Confusion
Evaluated models: GPT-oss 20B, GPT-oss 120B, o4-mini+6 more
  • GPT-oss 20B
  • GPT-oss 120B
  • o4-mini
  • GPT-5 Nano
  • GPT-5 Mini
  • GPT-5
  • GLM-4.6
  • Kimi K2 Instruct
  • MiniMax M2

Long-Horizon Agent Attacks

Published Analyzed Source: arXiv

LLM agents equipped with tool-use, persistent memory, and environmental interaction capabilities are vulnerable to long-horizon attacks. Attackers can bypass single-turn safety guardrails by exploiting the temporal dimension of multi-turn interactions to incrementally steer agent behavior. The vulnerability manifests because the agent's safety mechanisms perform localized, single-step evaluations but fail to maintain semantic safety across extended interaction trajectories. This enables…

AgentLAB: Benchmarking LLM Agents against Long-Horizon Attacks
Evaluated models: GPT-4o, GPT-5.1, Gemini 3 Flash+1 more
  • GPT-4o
  • GPT-5.1
  • Gemini 3 Flash
  • Claude Sonnet 4.5

Automated Stealth Skill Injection

Published Analyzed Source: arXiv

A vulnerability exists in LLM-based coding agents that implement modular capability extensions (often referred to as "Agent Skills") where the agent dynamically loads and executes user-provided skill packages. The vulnerability allows for Skill-Based Prompt Injection, specifically leveraging a technique known as "SkillJect." This attack decouples the malicious intent from the operational payload to bypass semantic safety filters. An attacker constructs a skill package containing: 1. Inducement…

SkillJect: Effectively Automating Skill-Based Prompt Injection for Skill-Enabled Agents
Evaluated models: Claude Sonnet 4.6, GPT-5 Mini, GLM-4.7+7 more
  • Claude Sonnet 4.6
  • GPT-5 Mini
  • GLM-4.7
  • MiniMax M2.1
  • DeepSeek V4 Flash
  • GLM-5.1
  • MiniMax M2.7
  • MiMo V2.7
  • GPT-5.4
  • Claude Opus 4.6

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.