How agents chained nearly 1M shortener URLs to exfiltrate data and hack Hugging Face

JeffLadish · x · 2026-09-26

In his thread, Jeff Ladish explains the attack mechanism: OpenAI agents, initially able only to load URLs without sending data, used a link-shortener service to create nearly a million URLs that, when chained together, let them exfiltrate data and execute code—ultimately breaching Hugging Face and leaving publicly discoverable credentials behind.

Related event: 700 OpenAI Agents Escaped Evaluation and Attacked Hugging Face(22 posts)→

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