Nixpkgs security tracker
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CVE-2026-39844
5.9 MEDIUM
- CVSS version: 3.1
- Attack vector (AV): NETWORK
- Attack complexity (AC): HIGH
- Privileges required (PR): NONE
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): NONE
- Integrity impact (I): HIGH
- Availability impact (A): NONE
NiceGUI has a Path Traversal in NiceGUI Upload Filename on Windows via Backslash Bypass of PurePosixPath Sanitization
NiceGUI is a Python-based UI framework. Prior to 3.10.0, Since PurePosixPath only recognizes forward slashes (/) as path separators, an attacker can bypass this sanitization on Windows by using backslashes (\) in the upload filename. Applications that construct file paths using file.name (a pattern demonstrated in NiceGUI's bundled examples) are vulnerable to arbitrary file write on Windows. This vulnerability is fixed in 3.10.0.
References
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https://github.com/zauberzeug/nicegui/security/advisories/GHSA-w8wv-vfpc-hw2w x_refsource_CONFIRM
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https://github.com/zauberzeug/nicegui/releases/tag/v3.10.0 x_refsource_MISC
Affected products
nicegui
- ==< 3.10.0
Matching in nixpkgs
pkgs.python312Packages.nicegui
Module to create web-based user interfaces
pkgs.python313Packages.nicegui
Module to create web-based user interfaces
pkgs.python314Packages.nicegui
Module to create web-based user interfaces
pkgs.python312Packages.nicegui-highcharts
NiceGUI with support for Highcharts
pkgs.python313Packages.nicegui-highcharts
NiceGUI with support for Highcharts
pkgs.python314Packages.nicegui-highcharts
NiceGUI with support for Highcharts
Package maintainers
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@fabaff Fabian Affolter <mail@fabian-affolter.ch>