CVE-2026-45553
High · 7.5CVSS
7.5
EPSS
0.4%
Published
Jun 2, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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