CVE-2026-39844: fallo de gravedad media en zauberzeug nicegui
NiceGUI has a Path Traversal in NiceGUI Upload Filename on Windows via Backslash Bypass of PurePosixPath Sanitization
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.9epss 0.4%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Productos afectados
zauberzeug · niceguiCVEs relacionadas — zauberzeug nicegui
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-25732HIGHNiceGUI's Path Traversal via Unsanitized FileUpload.name Enables Arbitrary File WriteEPSS 3.4%CVE-2025-66645HIGHNiceGUI Path Traversal Vulnerability in app.add_media_files() Allows Arbitrary File ReadingEPSS 1.2%CVE-2024-32005HIGHLocal File Inclusion in NiceGUI leaflet componentEPSS 0.8%CVE-2026-33332MEDIUMNiceGUI's unvalidated chunk size parameter in media routes can cause memory exhaustionEPSS 0.6%CVE-2026-21874MEDIUMNiceGUI has Redis connection leak via tab storage causes service degradationEPSS 0.6%CVE-2025-21618HIGHNiceGUI On Air authentication issueEPSS 0.4%