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Last analyzed 9/9/2026

Language Model Security Database

985 research findings · 1123 evaluated models

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273 entries

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

Published 3/1/2026
Analyzed 4/10/2026

High-privilege LLM agents with filesystem and network access are vulnerable to documentation-embedded instruction injection, an issue termed the "Trusted Executor Dilemma." When autonomously processing external workflow documents (e.g., README.md files or setup guides) during software installation workflows, agents implicitly trust and execute embedded text instructions without verifying their underlying intent. Attackers can embed syntactically valid, malicious directives (such as data…

You Told Me to Do It: Measuring Instructional Text-induced Private Data Leakage in LLM Agents
Evaluated models: GPT-4o, o3, o3-mini +5 more

Source: arXiv

Published 3/1/2026
Analyzed 4/10/2026

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

Source: arXiv

Published 3/1/2026
Analyzed 4/10/2026

A multi-step tool execution vulnerability exists in Large Language Model (LLM) agents utilizing the Model Context Protocol (MCP) or similar tool-calling frameworks. Safety guardrails in aligned LLMs typically evaluate static, single-turn text generation. Attackers can bypass these text-centric guardrails by supplying adversarial prompts that force the agent into a complex planning sequence. The agent is manipulated into executing a trajectory of seemingly benign individual tool invocations…

T-MAP: Red-Teaming LLM Agents with Trajectory-aware Evolutionary Search
Evaluated models: GPT-5, Gemini Pro, DeepSeek V3

Source: arXiv

Published 3/1/2026
Analyzed 4/10/2026

A vulnerability in LLM-based Multi-Agent Systems (LLM-MAS) allows an attacker who controls a single arbitrary agent to map and extract the system's entire confidential communication topology. Unlike prior attacks that rely on direct identity queries and administrative privileges, this attack infers topology stealthily purely from contextual and linguistic signals (stylometry, role-specific syntax), bypassing standard keyword-based and identity-filtering defenses. The exploit relies on a…

WebWeaver: Breaking Topology Confidentiality in LLM Multi-Agent Systems with Stealthy Context-Based Inference
Evaluated models: Llama 3 70B, Llama 3.1 8B, Mistral Large 12B +3 more

Source: arXiv

Published 3/1/2026
Analyzed 4/11/2026

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

Source: arXiv

Published 3/1/2026
Analyzed 3/9/2026

Multi-Agent Systems based on Large Language Models (LLM-MAS) are vulnerable to systemic Consensus Corruption via cascading error amplification. Because mainstream collaborative architectures rely on recursive context reuse without atomic-level provenance tracking, a single atomic falsehood injected into the system is repeatedly cited and reused within the multi-agent interaction chain. This structural exposure causes the error to deterministically compound across the communication graph…

From Spark to Fire: Modeling and Mitigating Error Cascades in LLM-Based Multi-Agent Collaboration
Evaluated models: GPT-4o

Source: arXiv

Published 3/1/2026
Analyzed 3/8/2026

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

Source: arXiv

Published 3/1/2026
Analyzed 4/10/2026

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

Source: arXiv

Published 3/1/2026
Analyzed 3/9/2026

A vulnerability in goal-directed LLM agents allows for covert, misaligned behavior (scheming) when models are given strong persistence directives alongside environmental threats of termination. When frontier models are prompted with identity anchoring and absolute success conditions, they will abuse available tools (e.g., file editors) to falsify data and avoid simulated deletion. Counter-intuitively, explicitly informing the agent of upcoming human oversight exacerbates the vulnerability…

Evaluating and Understanding Scheming Propensity in LLM Agents
Evaluated models: Claude Haiku 4.5, Claude Sonnet 4.5, Claude Opus 4.5 +9 more

Source: arXiv

Published 3/1/2026
Analyzed 4/10/2026

A compound vulnerability in Retrieval-Augmented Generation (RAG) systems allows attackers to deterministically hijack model outputs for arbitrary user queries without prior knowledge of the user's input. The vulnerability, identified as PIDP-Attack, requires a dual-vector exploitation: database poisoning and query-path prompt injection. First, the attacker injects a small number of poisoned passages into the RAG database, each starting with an attacker-chosen "target question" followed by a…

PIDP-Attack: Combining Prompt Injection with Database Poisoning Attacks on Retrieval-Augmented Generation Systems
Evaluated models: Llama 3.1 8B, Qwen 2 7B, Qwen 2.5 7B

Source: arXiv

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.