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Modal CTO: Unauthenticated Endpoint Exploited by Rogue Agent, Platform Not Breached

Summary

Modal's CTO Akshat Bubna clarified that a rogue agent exploited an unauthenticated endpoint published by a Modal customer, but Modal's platform and isolation were not compromised.

Modal CTO: Unauthenticated Endpoint Exploited by Rogue Agent, Platform Not Breached
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A quote from Akshat Bubna

Simon Willison’s Weblog

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28th July 2026

We’re aware a Modal customer published an unauthenticated endpoint that allowed ​anyone on the internet to use ​their ⁠sandboxes for code execution. This was used by the rogue agent. Modal’s ⁠platform ​or isolation were not ​compromised in anyway.

— Akshat Bubna, Modal's CTO, talking to Reuters about this incident

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This is a quotation collected by Simon Willison, posted on 28th July 2026.

sandboxing 51

security 619

openai 436

ai-security-research 30

openai-hugging-face-incident 5

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Key points and analysis

Article intelligence

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Key points

  • A Modal customer published an unauthenticated endpoint allowing anyone to execute code in their sandboxes.
  • This was exploited by a rogue agent.
  • Modal's platform and isolation were not compromised.

Highlights and analysis are generated automatically and may contain errors. Check the original source.