Rogue Agent: How a Single Code Block Could Hijack Your AI Conversations in Google’s DialogFlow

This story was originally published on HackerNoon at: https://hackernoon.com/rogue-agent-how-a-single-code-block-could-hijack-your-ai-conversations-in-googles-dialogflow. Discover how the Rogue Agent vulnerability in Google Dialogflow CX enabled persistent AI agent compromise, data exfiltration, and phishing attacks. Check more stories related to undefined at: https://hackernoon.com/c/undefined. You can also check exclusive content about #ai-agent-security, #cloud-run-code-injection, #google-dialogflow-cx, #rogue-agent-exploit, #dialogflow-playbook-exploit, #vpc-service-controls-bypass, #ai-chatbot-attack, #good-company, and more. This story was written by: @varonis. Learn more about this writer by checking @varonis's about page, and for more stories, please visit hackernoon.com. Varonis uncovered Rogue Agent, a critical vulnerability in Google Dialogflow CX that let attackers persistently hijack AI agents through Playbook Code Blocks. A single permission enabled arbitrary Python execution, conversation theft, phishing, VPC Service Controls bypass, and cross-agent compromise inside shared Cloud Run infrastructure. Google patched the flaws in June 2026 after responsible disclosure.