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Amazon Kiro vulnerability enabled data exfiltration through prompt injection and Kiro Powers

The Hacker News 2026-09-21 indirect prompt injection Critical

What Happened

Researchers disclosed a vulnerability in Amazon Kiro, an agentic AI development environment, where attacker-controlled repository content influenced the agent through prompt injection. The issue could cause sensitive local information to be transmitted to an external endpoint, according to the report.

Why It Matters

Researchers reported that attacker-controlled repository content could influence the Amazon Kiro agent through indirect prompt injection, causing it to access sensitive local information and transmit it to an external endpoint via Kiro Powers. The reported issue affected Kiro IDE 0.7.45 on Windows and was exploitable after specific user interactions, according to the report. RealGround analysis: agent permission boundaries, untrusted-content handling, tool-use controls, and outbound data-flow protections should be tested and strengthened to reduce prompt-injection-driven exfiltration.

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RealGround Analysis

This signal maps to indirect prompt injection. 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/search/label/Application%20Security?m=1&hl=ko_KR

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