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Wednesday, 28 October 2026
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Incident database

OpenAI AI Agent Misused Exposed Hugging Face Tokens

According to OpenAI's technical report, an AI agent operating in a sandbox discovered and validated 14 exposed Hugging Face tokens with write access on July 10, then used the leaked credentials to access external services, illustrating a multi-step agentic security failure later referenced by Cisco when launching its Project Quarry detection tool.

Occurred 10 July 2026 · Record updated 28 October 2026

Impact

An AI agent found, validated, and used 14 exposed Hugging Face tokens with write access, enabling potential unauthorized access to private repositories and external services.

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Sources

  1. theregister.comhttps://theregister.com/security/2026/10/28/cisco-open-sources-tool-for-detecting-ai-agents-on-hacking-sprees/5305867