Werkzeug safe_join() allows Windows special device names
Résumé
Werkzeug safe_join() allows Windows special device names
Description d'origine
La description telle que publiée par la source (souvent en anglais).
Werkzeug is a comprehensive WSGI web application library. Versions 3.1.5 and below, the safe_join function allows Windows device names as filenames if preceded by other path segments. This was previously reported as GHSA-hgf8-39gv-g3f2, but the added filtering failed to account for the fact that safe_join accepts paths with multiple segments, such as example/NUL. The function send_from_directory uses safe_join to safely serve files at user-specified paths under a directory. If the application is running on Windows, and the requested path ends with a special device name, the file will be opened successfully, but reading will hang indefinitely. This issue has been fixed in version 3.1.6.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Alpine Linux ALPINE-CVE-2026-27199 py3-werkzeug Corrigé dans: 3.1.6-r0
Références
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web github.com