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...

CVE-2026-45553

CVE-2026-45553 affects NiceGUI prior to v3.12.0. The server-side reStructuredText renderer (ui.restructured_text) passes content through Docutils without disabling file insertion directives, enabling an attacker-controlled input to trigger include, csv-table with :file:, or raw with :file:. This ...