What Happened
A critical flaw in Google's Dialogflow CX could have let an attacker with edit rights on one Code Block-enabled agent compromise other Code Block-enabled agents in the same Google Cloud project. From there, they could read live conversations, steal the data users shared, and make the bots send attacker-written messages, including requests to re-enter a password. Security firm Varonis found it
Why It Matters
Varonis reported a Dialogflow CX flaw, called Rogue Agent, that could let an attacker with edit rights on one Code Block-enabled agent affect other Code Block-enabled agents in the same Google Cloud project, read live conversations, and inject attacker-written messages. Google said the issue was fully mitigated and no customer compromise was known. RealGround assessment: this is primarily a data leakage risk because the attack path exposes user conversation data and can also be used to manipulate chatbot behavior, so agent permissions, code blocks, and cross-agent isolation should be reviewed as production-grade controls.
RealGround Analysis
This signal maps to data leakage. Organizations using AI agents, LLM APIs, SaaS integrations, or sensitive data workflows should review whether this class of issue could create unauthorized tool execution, data leakage, weak approval gates, or unmanaged supply-chain exposure.
Recommended Actions
- Restrict AI agent tool permissions and production write paths.
- Review sensitive data access across prompts, logs, embeddings, memory, and SaaS integrations.
- Add human approval workflows for high-impact or state-changing actions.
- Run prompt injection and indirect prompt injection tests against affected workflows.
- Document the owner, control gap, and remediation deadline for this risk class.
Source
https://thehackernews.com/2026/07/rogue-agent-flaw-could-have-let.html