CVE-2026-45553 | BDVDB-2026-337346 Detail

Description#

NiceGUI is a Python-based UI framework. Prior to version 3.12.0, ui.restructured_text() renders reStructuredText server-side with Docutils without disabling file insertion directives. When a NiceGUI application passes attacker-controlled content to ui.restructured_text(), an attacker can use standard Docutils directives (include, csv-table with :file:, raw with :file:) to read local files readable by the NiceGUI server process. Applications that only pass trusted static strings to ui.restructured_text() are not affected. This issue has been patched in version 3.12.0.

Impact#

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Exploit#

History#

1. Version 12026-06-02Record published in the CVE List.
2. Version 22026-06-03Most recent update recorded in the CVE List.