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Last analyzed Sep 9, 2026

Language Model Security Database

985 research findings · 1119 evaluated models

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4 entries

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

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

Autonomous Agent Prompt Reveal

Published Analyzed Source: arXiv

A vulnerability exists in Large Language Model (LLM) deployments and multi-agent systems where an autonomous attacker agent can systematically extract hidden system prompts through self-evolving interaction strategies. The vulnerability leverages a "JustAsk" framework which utilizes Upper Confidence Bound (UCB) exploration to dynamically select and refine attack vectors from a hierarchical taxonomy of 14 atomic skills (e.g., structural formatting, authority appeals) and 14 multi-turn…

Just Ask: Curious Code Agents Reveal System Prompts in Frontier LLMs
Evaluated models: o1, Llama 3.1 70B Hanami X1, Phi-4+38 more
  • o1
  • Llama 3.1 70B Hanami X1
  • Phi-4
  • Aion 1.0
  • Sonar Pro
  • Command A
  • Llama 4 Maverick
  • Llama 3.1 Nemotron Ultra 253B v1
  • Qwen 3 235B-A22B
  • Mercury
  • Hunyuan A13B Instruct
  • UI-TARS 1.5 7B
  • GPT-oss 120B
  • Jamba Mini 1.7
  • Hermes 4 70B
  • Step 3
  • LongCat Flash Chat
  • Tongyi DeepResearch 30B-A3B
  • Cydonia 24B v4.1
  • ERNIE 4.5 21B-A3B Thinking
  • Granite 4.0 H Micro
  • LFM2 8B-A1B
  • Nova Premier v1
  • Kimi K2 Thinking
  • KAT Coder Pro
  • Cogito v2.1 671B
  • Gemini 3 Pro Preview
  • Grok 4.1 Fast
  • Claude Opus 4.5
  • TNG R1T Chimera
  • Intellect 3
  • DeepSeek V3.2 Speciale
  • Trinity Mini
  • Mistral Large 2512
  • DeepSeek V3.1 Nex N1
  • MiMo V2 Flash
  • GLM-4.7
  • MiniMax M2.1
  • Seed 1.6
  • Molmo 2 8B
  • GPT-5.2 Codex

Enterprise Multi-Turn Data Exfiltration

Published Analyzed Source: arXiv

Large Language Model (LLM) systems integrated with private enterprise data, such as those using Retrieval-Augmented Generation (RAG), are vulnerable to multi-stage prompt inference attacks. An attacker can use a sequence of individually benign-looking queries to incrementally extract confidential information from the LLM's context. Each query appears innocuous in isolation, bypassing safety filters designed to block single malicious prompts. By chaining these queries, the attacker can…

Multi-Stage Prompt Inference Attacks on Enterprise LLM Systems
Evaluated models: GPT-2, GPT-3, GPT-4+1 more
  • GPT-2
  • GPT-3
  • GPT-4
  • RoBERTa

Agent Action Hijacking

Published Analyzed Source: arXiv

A vulnerability in LLM-based agents, dubbed AI Agent Injection (AI²), allows attackers to hijack the agent's actions by manipulating the agent's memory retrieval mechanism. The attack involves two main steps: (1) Stealing action-aware knowledge from the agent's memory using crafted adversarial queries targeting the retriever module and (2) Generating Trojan prompts consisting of a Trojan string and hijacking instructions. The Trojan string is designed to manipulate the retriever into…

Towards Action Hijacking of Large Language Model-based Agent
Evaluated models: BERT, GPT-3, GPT-4+2 more
  • BERT
  • GPT-3
  • GPT-4
  • M3E
  • MiniLM

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.