En resumen
- CVE-2025-66221 es una vulnerabilidad MEDIO (CVSS 5.3) que afecta a werkzeug, werkzeug (palletsprojects).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.55%, mayor que el 45.9% de las vulnerabilidades.
- Solución: actualizar a 3.1.4 o posterior.
| Package | Affected versions | Patched versions |
|---|
| werkzeug PyPI | < 3.1.4
| 3.1.4
|
| werkzeug | < 3.1.4
| 3.1.4
|
Description
Werkzeug's safe_join function allows path segments with Windows device names. On Windows, there are special device names such as CON, AUX, etc that are implicitly present and readable in every directory. 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.
NVD description
Werkzeug is a comprehensive WSGI web application library. Prior to version 3.1.4, Werkzeug's safe_join function allows path segments with Windows device names. On Windows, there are special device names such as CON, AUX, etc that are implicitly present and readable in every directory. 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 patched in version 3.1.4.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free