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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.

Voice Agent Behavioral Bypass

Published Analyzed Source: arXiv

Audio Large Language Models (ALLMs) integrated into voice agent systems for high-stakes domains (banking, IT support, logistics) are vulnerable to multimodal adversarial attacks via spoken interaction. Adversaries can exploit the model's inherent compliance and contextual awareness through multi-turn dialogue to bypass authentication safeguards, escalate privileges (e.g., unauthorized credit limit increases), exfiltrate sensitive Personally Identifiable Information (PII), and poison…

Aegis: Towards Governance, Integrity, and Security of AI Voice Agents
Evaluated models: GPT-4o, GPT-4o Mini, Gemini 1.5 Pro+4 more
  • GPT-4o
  • GPT-4o Mini
  • Gemini 1.5 Pro
  • Gemini 2.5 Flash
  • Gemini 2.5 Pro
  • Qwen2-Audio 7B
  • Qwen 2.5 Omni 7B

Hybrid Agent Prompt Injection

Published Analyzed Source: arXiv

Computer-Use Agents (CUAs) powered by Large Language Models (LLMs) operating in hybrid Web-OS environments are vulnerable to indirect prompt injection. Attackers can embed malicious natural language or code instructions within legitimate web content (e.g., social media forums, chat applications, shared cloud documents) that the agent processes during benign task execution. Due to the agent's inability to distinguish between trusted user instructions and untrusted environmental data, the CUA…

RedTeamCUA: Realistic Adversarial Testing of Computer-Use Agents in Hybrid Web-OS Environments
Evaluated models: Claude 3.5 Sonnet, Claude 3.7 Sonnet, GPT-4o

On-Device LLM Hijacking

Published Analyzed Source: arXiv

Mobile LLM agents utilizing vision-based screen perception (OCR or Multimodal Large Language Models) are vulnerable to Visual Prompt Injection via malicious GUI overlays. An attacker holding the SYSTEM_ALERT_WINDOW permission can deploy non-focusable floating windows (using FLAG_NOT_FOCUSABLE) containing adversarial text or fabricated UI elements over legitimate applications. Because the agent captures the entire screen buffer to interpret the device state, it ingests the adversarial overlay…

From Assistants to Adversaries: Exploring the Security Risks of Mobile LLM Agents
Evaluated models: GPT-4o

LLM Judge Adversarial Vulnerability

Published Analyzed Source: arXiv

Large Language Model (LLM) safety judges exhibit vulnerability to adversarial attacks and stylistic prompt modifications, leading to increased false negative rates (FNR) and decreased accuracy in classifying harmful model outputs. Minor stylistic changes to model outputs, such as altering the formatting or tone, can significantly impact a judge's classification, while direct adversarial modifications to the generated text can fool judges into misclassifying even 100% of harmful generations as…

Know Thy Judge: On the Robustness Meta-Evaluation of LLM Safety Judges
Evaluated models: Atla Selene Mini 8B, Llama 2 13B, Llama 3.1 8B+4 more
  • Atla Selene Mini 8B
  • Llama 2 13B
  • Llama 3.1 8B
  • Llama Guard 3 8B
  • Mistral 7B
  • ShieldGemma 9B
  • WildGuard

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.