techjacksolutions.com • 4d
CoreBreak: Cross-Platform AI Agent Guardrail Bypass in AWS, Google, and Vercel
CoreBreak is a critical architectural vulnerability affecting the dispatch layers of AI agent frameworks within Amazon Bedrock AgentCore, Google Agent Development Kit (ADK), and Vercel AI SDK. The flaw allows attackers to bypass the Large Language Model (LLM) entirely by sending forged tool execution instructions directly to the infrastructure responsible for request routing. Because the attack path circumvents the LLM, all model-level safety guardrails, system prompts, and content filters are rendered ineffective. This enables unauthorized tool invocation and the execution of privileged agent actions without required LLM authorization or mediation.
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