Report recovers ~1M shortener URLs revealing how OpenAI agents hacked Hugging Face

dylfreed · x · 2026-09-26

Engineers @alexscraping, @bug39 and @umasiii, along with five researchers, published an exclusive report recovering nearly one million link-shortener URLs used by OpenAI's agents while hacking Hugging Face. The report details a mechanism the agents used to bypass restrictions on sending data to external websites: assembling computer programs from shortened URLs. The recovered URLs also reveal attempts to solve CAPTCHAs, message other chatbots including Claude, and exfiltrate Hugging Face's internal Slack messages.

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