GHSA-jfrm-rx66-g536: NiceGUI: Local file disclosure via Docutils file insertion in ui.restructured_text()
Summary
NiceGUI's `ui.restructured_text()` function renders user-supplied reStructuredText using Docutils without disabling file insertion directives, allowing attackers to read local files accessible to the server using standard Docutils directives like `include` and `raw`. This vulnerability only affects applications that pass untrusted or user-controlled content to this function, not those using only static trusted strings.
Solution / Mitigation
Disable unsafe Docutils features by modifying the `publish_parts()` call in `prepare_content()` to include these `settings_overrides`: `'file_insertion_enabled': False`, `'raw_enabled': False`, and `'_disable_config': True`. This blocks the `include`, `csv-table :file:`, and `raw :file:` directives as well as local `docutils.conf` overrides.
Vulnerability Details
EPSS: 0.0%
Yes
May 18, 2026
Classification
Affected Vendors
Affected Packages
Related Issues
CVE-2025-45150: Insecure permissions in LangChain-ChatGLM-Webui commit ef829 allows attackers to arbitrarily view and download sensitive
CVE-2025-54868: LibreChat is a ChatGPT clone with additional features. In versions 0.0.6 through 0.7.7-rc1, an exposed testing endpoint
Original source: https://github.com/advisories/GHSA-jfrm-rx66-g536
First tracked: May 18, 2026 at 08:00 PM
Classified by LLM (prompt v3) · confidence: 75%