FKIE_CVE-2026-39844

Vulnerability from fkie_nvd - Published: 2026-04-08 21:16 - Updated: 2026-04-15 19:08
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
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
security-advisories@github.comhttps://github.com/zauberzeug/nicegui/commit/d38a702e3af2da5b0708f689be8d71413fc77056Patch
security-advisories@github.comhttps://github.com/zauberzeug/nicegui/releases/tag/v3.10.0Release Notes
security-advisories@github.comhttps://github.com/zauberzeug/nicegui/security/advisories/GHSA-w8wv-vfpc-hw2wVendor Advisory
Impacted products
Vendor Product Version
zauberzeug nicegui *
microsoft windows -
To clipboard 

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  "lastModified": "2026-04-15T19:08:44.330",
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