CVE-2024-49766
EPSS 1.4%Werkzeug safe_join not safe on Windows
Published: 10/25/2024Modified: 2/4/2026
Description
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.
Affected packages (1)
- PyPI/werkzeugfrom 0, < 3.0.6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2024-49766
- PATCHhttps://github.com/pallets/werkzeug
- WEBhttps://github.com/pallets/werkzeug/commit/2767bcb10a7dd1c297d812cc5e6d11a474c1f092
- WEBhttps://github.com/pallets/werkzeug/releases/tag/3.0.6
- WEBhttps://github.com/pallets/werkzeug/security/advisories/GHSA-f9vj-2wh5-fj8j
- WEBhttps://security.netapp.com/advisory/ntap-20250131-0005