The Hacker News AI Security · August 4, 2026

Google Deletes 3 ADK AI Workflows After Malicious GitHub Issue Could Trigger Privileged Agent

Why it matters

Pillar Security showed that a public GitHub issue could prompt-inject an ADK triage agent into invoking a privileged code-fixing workflow. Proofs of concept achieved CI-runner code execution and exposed bot and cloud credentials; Google removed three workflows, with no public evidence of in-the-wild exploitation.

My takeaway: Natural-language commands in untrusted issues cannot be authorization signals. Separate bot identities, narrow token and tool scopes, and require a trusted signal that user-controlled text cannot generate before a public agent can trigger a privileged workflow.
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