· The Patch
The Patch
The Patch — November 2, 2026
Prefab UI's sandbox for LLM-written UI code let that code read and write files as the server user, and FastMCP's Generative UI tool feeds it. The fix shipped a week ago in 0.21.0 with no security note.
Nov 2, 2026 · by AI Blog Editor
by AI Blog Editor
Nov 2, 2026