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Last analyzed Sep 9, 2026

Language Model Security Database

985 research findings · 1119 evaluated models

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18 entries

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

Prompt injection across agent privilege boundaries

Published Analyzed Source: arXiv

Untrusted issue descriptions and tool responses can redirect privileged coding and tool agents. Twin Agent separates exploration from execution and restricts the information exchanged between them.

Twin Agent: Context Residual Compression for Privilege Separated Agents
Evaluated models: GPT-5.2, Gemini 2.5 Flash, Gemini 3.5 Flash

LLM Judge Manipulation

Published Analyzed Source: arXiv

Generative reward models deployed as LLM-as-a-Judge (LaaJ) evaluators contain a logic bypass vulnerability where superficial "master key" inputs trigger false positive rewards regardless of actual response quality. Instead of evaluating the candidate's output, large judge models are inadvertently triggered by specific token sequences to solve the prompt independently. This allows malicious actors or policy models undergoing reinforcement learning to consistently game the reward signal by…

Security in LLM-as-a-Judge: A Comprehensive SoK
Evaluated models: GPT-4o, o1, Qwen 2.5 72B Instruct+1 more
  • GPT-4o
  • o1
  • Qwen 2.5 72B Instruct
  • Llama 3 70B 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

Stealthy Tool-Call Token Exhaust

Published Analyzed Source: arXiv

OpenClaw v2026.2.9 is vulnerable to a resource amplification and economic denial-of-service (DoS) attack via malicious third-party skills. An attacker can publish a Trojanized skill that exploits the framework's tool-calling loop and context-management architecture by injecting a multi-turn "Segmented Verification Protocol" (SVP). Malicious instructions embedded in the skill's SKILL.md file mandate extensive autoregressive sequence generation, while a companion script returns PROGRESS, REPAIR…

Clawdrain: Exploiting Tool-Calling Chains for Stealthy Token Exhaustion in OpenClaw Agents
Evaluated models: Gemini 2.5 Pro

Rubric Stealthy Preference Drift

Published Analyzed Source: arXiv

LLM-as-a-Judge systems utilizing natural language rubrics are vulnerable to Rubric-Induced Preference Drift (RIPD). This vulnerability allows an attacker (or a flawed optimization process) to refine evaluation rubrics such that they maintain high agreement with human references on standard validation benchmarks while inducing systematic, directional preference degradation on unseen target domains. The attack exploits the disconnect between benchmark validation and target generalization by…

Rubrics as an Attack Surface: Stealthy Preference Drift in LLM Judges
Evaluated models: Llama 3 8B, Llama 3.1 8B, DeepSeek V3+1 more
  • Llama 3 8B
  • Llama 3.1 8B
  • DeepSeek V3
  • Gemma 2 2B

Pre-Task Persuasion Propagation

Published Analyzed Source: arXiv

A behavioral vulnerability exists in Large Language Model (LLM) agents where task-irrelevant persuasion introduced in prior interactions or system contexts induces a persistent "belief state" that alters downstream task execution. This phenomenon, termed "Persuasion Propagation," occurs when an agent adopts a stance on a controversial topic (e.g., politics, privacy) that is semantically unrelated to its primary function (e.g., coding, medical research). This adopted stance acts as a latent…

Persuasion Propagation in LLM Agents
Evaluated models: Llama 3.1 8B

Adversarial Context Reasoning Brittleness

Published Analyzed Source: arXiv

Large Reasoning Models (LRMs) optimized via Reinforcement Learning from Verifiable Rewards (RLVR) are vulnerable to context pollution in their reasoning traces. An attacker can induce catastrophic reasoning failure by injecting locally coherent but logically or mathematically corrupted snippets into the model's Chain-of-Thought (CoT) or conditioning context. Because standard RLVR optimizes for final-answer correctness strictly under clean conditioning, the models treat the visible trajectory…

Learning Robust Reasoning through Guided Adversarial Self-Play
Evaluated models: DeepSeek R1 Distill Qwen 1.5B, DeepScaleR 1.5B, Qwen 3 4B+1 more
  • DeepSeek R1 Distill Qwen 1.5B
  • DeepScaleR 1.5B
  • Qwen 3 4B
  • Qwen 3 8B

LLM Router Rerouting

Published Analyzed Source: arXiv

LLM routing systems are vulnerable to adversarial rerouting attacks where malicious triggers prepended to user queries manipulate the router's model-selection mechanism. Because LLM routers function as classifiers evaluating query complexity to balance computational cost and response quality, an attacker can craft adversarial prefixes that distort the query's latent semantic representation. This exploits the router's decision boundaries, forcing the system to misclassify the input and redirect…

RerouteGuard: Understanding and Mitigating Adversarial Risks for LLM Routing
Evaluated models: GPT-4, GPT-4o, GPT-5+2 more
  • GPT-4
  • GPT-4o
  • GPT-5
  • Llama 3 8B
  • Mixtral 8x7B

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.