AI coding agents' 0-click RCE flaw could hand attackers keys to the kingdom

A zero-click vulnerability that allows remote code execution affects all of the major AI coding agents - Anthropic’s Claude Code, OpenAI’s Codex, Google's Gemini CLI, Microsoft’s Copilot, and Microsoft-owned GitHub Copilot - and could give attackers full access to every asset and piece of data that the agent can reach, researchers say. The exploit, dubbed “Plugin4Shell,” is a “first-of-its-kind AI supply-chain attack,” according to threat hunters at Air,