A vulnerability in a GitHub Actions workflow was introduced through an AI-generated GitHub Copilot 'Autofix', allowing an unauthenticated user to execute arbitrary commands. The vulnerability was discovered and exploited by Wiz Red Agent, an autonomous AI-powered security research tool, just five days after it became live. Snowflake remediated the vulnerability on the same day it was reported and rotated the affected credential. The incident highlights the importance of rigorous oversight of AI-generated code and the need for security teams to adapt to a landscape where automated discovery and exploitation of vulnerabilities can occur rapidly.