AI agent incident

A GitHub issue could escalate from a low-privilege Google ADK agent to a privileged one

Reported · 3 sources

What happened

Researchers showed that a crafted prompt reaching a low-privilege agent built on Google's Agent Development Kit could hijack a privileged agent, exposing secrets and tampering with pull requests, and that a public GitHub issue was enough to start the chain. Google deleted three ADK workflows in response and fixed related flaws in its Python library.

Why it matters

The trust boundary that failed was agent to agent, not user to agent. Authenticating the human at the front door does nothing if the hand-off message between agents is taken on faith.

Sources

  1. SecurityWeek Gemini Agent-to-Agent Attack Method Exposed Secrets, Enabled Pull Request Tampering
  2. The Hacker News Google Deletes 3 ADK AI Workflows After Malicious GitHub Issue Could Trigger Privileged Agent
  3. Dark Reading Flaws in Google APK for Python Unlock Agent-to-Agent Attack

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Background reading

Does RBAC work for AI agents? An explainer on the problem behind this incident.

In the tools directory

These pages list this record as a related incident, next to the products in the category and questions to ask their vendors.

Cite or correct this record

“A GitHub issue could escalate from a low-privilege Google ADK agent to a privileged one.” The Permission Layer AI Agent Incident Database, https://thepermissionlayer.com/incidents/google-adk-agent-privilege-escalation/. Database updated October 22, 2026.

Every record traces to the dated sources above. If something here is wrong or missing, email [email protected] and it gets fixed. See this record in the full list.

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