CVE-2024-49766

Published: October 26, 2024Last modified: June 9, 2025

Description

Werkzeug is a Web Server Gateway Interface web application library. On Python < 3.11 on Windows, os.path.isabs() does not catch UNC paths like //server/share. Werkzeug's safe_join() relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python >= 3.11, or not using Windows, are not vulnerable. Werkzeug version 3.0.6 contains a patch.

Notes

Windows-only issue.

Status

References

• https://github.com/pallets/werkzeug/commit/2767bcb10a7dd1c297d812cc5e6d11a474c1f092
• https://github.com/pallets/werkzeug/releases/tag/3.0.6
• https://github.com/pallets/werkzeug/security/advisories/GHSA-f9vj-2wh5-fj8j
• https://security.netapp.com/advisory/ntap-20250131-0005/