Last analyzed 9/9/2026

Language Model Security Database

Explore primary-source AI security research, evaluated models, attack techniques, and defensive evidence.

985 research findings · 1123 evaluated models

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Single-interaction poisoning of agent memory

Published 8/24/2026

Analyzed 9/9/2026

A stored interaction can later steer a memory-augmented agent's answer without direct memory-store access. The study evaluates persistent response manipulation in MemoryOS and MemGPT.

InjecMEM: Memory Injection Attack on LLM Agent Memory Systems

Evaluated models: Qwen 2.5 7B Instruct, Qwen 2.5 1.5B Instruct, Qwen 2.5 3B Instruct +3 more

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.