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Cyber · InfoQ.com

BadHost Vulnerability Exposes AI Agents, Evaluators, and LLM Gateways

By Sergio De SimoneJune 1, 2026 · 1 min read

BadHost is a high-severity authentication bypass vulnerability in the widely used Python web framework Starlette, with 325 million weekly downloads. The flaw allows attackers to use malformed HTTP Host headers to bypass path-based access controls and access s…

BadHost is a high-severity authentication bypass vulnerability in the widely used Python web framework Starlette, with 325 million weekly downloads. The flaw allows attackers to use malformed HTTP Ho…

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Cyber · InfoQ.com
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