Critical Flaws in Anthropic, Google, and OpenAI’s Coding Agents Enable RCE and Supply Chain Attacks

A repeatable vulnerability pattern across AI coding agents from Anthropic, Google, and OpenAI that allows attackers to achieve remote code execution, steal API credentials, and compromise software supply chains, all without any privileged access. The flaws were discovered by Novee security Researcher Elad Meged testing each vendor’s default configuration on their own public repositories, meaning the exposure isn’t theoretical; it’s live on the exact code millions of developers run today. The core issue lies not in the AI models themselves but in the “harness,” the surrounding code that manages tool permissions, execution, and sandboxing around each agent. Researcher Elad Meged found that a single...

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