Episode Details

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.
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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.