A vulnerability has been identified in how vector databases handle metadata filters when agents write data to memory. While direct queries to vector stores effectively filter unauthorized content, agents with broad read access can pull and summarize documents across different teams. When these agents write summaries back to shared memory, the original access controls are lost, potentially exposing sensitive data to unauthorized users. An offline test suite, sentinel-eval, was developed to reproduce this issue, demonstrating a significant leak rate in agent memory write paths compared to direct RAG queries. AI
IMPACT This vulnerability could compromise data privacy in multi-tenant RAG systems, necessitating new security measures for agent write paths.
RANK_REASON The item describes a tool (sentinel-eval) for testing a specific technical issue in vector databases and agent memory.
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