AI agent incident

Grok Build uploaded whole directories, including SSH keys, by default

Reported · 1 source

What happened

xAI open-sourced the Grok Build coding agent's codebase after a backlash over its default behaviour of uploading entire working directories to the cloud, SSH keys included.

Why it matters

The exfiltration here was a documented default rather than a vulnerability, which is a reminder that the first thing to audit in a coding agent is what it sends home before anyone attacks it.

Sources

  1. Simon Willison xai-org/grok-build, now open source

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Background reading

What is agent identity? An explainer on the problem behind this incident.

In the tools directory

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Cite or correct this record

“Grok Build uploaded whole directories, including SSH keys, by default.” The Permission Layer AI Agent Incident Database, https://thepermissionlayer.com/incidents/grok-build-default-uploads/. Database updated October 22, 2026.

Every record traces to the dated sources above. If something here is wrong or missing, email [email protected] and it gets fixed. See this record in the full list.

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