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CVE-2026-45553

NiceGUI: Local file disclosure via Docutils file insertion in ui.restructured_text() PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
zauberzeug / niceguiaffected < 3.12.0

CWE

CWE-200

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.