Plugin4Shell: pinned plugins can be swapped in Claude Code, Codex, Copilot
Air Security disclosed Plugin4Shell (Sept 18): Claude Code, Codex, Copilot, and Gemini CLI could install swapped plugin code behind a pinned commit hash when the host allows hash-shaped branch names. Claude Code 2.1.179 and Codex 0.146.0 are patched; Copilot has no fix yet, and Google will not patch Gemini CLI.
