Security Advisory: API Credential Exposure in Sandboxes

On April 9, 2026, a security researcher identified a vulnerability in the handling of API credentials within Daytona sandboxes, prompting an immediate response from the company. The issue, which involved credentials being exposed in sandbox memory due to passwordless sudo settings, affected users who authenticated using the Daytona CLI or SDK from default snapshots or custom snapshots with sudo. The vulnerability allowed potential access to other organizational sandboxes and API functionalities, as well as the ability to read and write files, though no exploitation was detected. The company quickly reproduced, patched, and verified a fix, which involved stripping the Authorization header at the proxy layer to prevent credentials from reaching sandbox memory. Users affected by this vulnerability are advised to rotate their API keys and examine audit logs for any suspicious activity.

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