CVE-2026-45553 NiceGUI: Local file disclosure via Docutils file insertion in ui.restructured_text()

NiceGUI is a Python-based UI framework. Prior to version 3.12.0, ui.restructuredtext renders reStructuredText server-side with Docutils without disabling file insertion directives. When a NiceGUI application passes attacker-controlled content to ui.restructuredtext, an attacker can use standard...