AI agent incident
The three vendors patched agent infrastructure flaws that let forged instructions trigger an agent's tools directly, with no model turn and therefore no guardrail check in between.
Content filters and system prompts all live inside the model call. Skipping the model skips every one of them, so tool invocation needs authentication of its own.
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“AWS, Google, and Vercel patched flaws that fired agent tools without the model.” The Permission Layer AI Agent Incident Database, https://thepermissionlayer.com/incidents/agent-tool-invocation-bypass/. Database updated October 22, 2026.
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