CVE-2024-49766: werkzeug Path Traversal — Fix

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.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-22 Path Traversal

Affected Products

Vendor	Product	Versions
palletsprojects	werkzeug	< 3.0.6
microsoft	windows	All

References

Advisories & Patches

https://github.com/pallets/werkzeug/commit/2767bcb10a7dd1c297d812cc5e6d11a474c1f092 https://github.com/pallets/werkzeug/security/advisories/GHSA-f9vj-2wh5-fj8j

Other References

https://github.com/pallets/werkzeug/releases/tag/3.0.6 https://security.netapp.com/advisory/ntap-20250131-0005/

Frequently Asked Questions

What is CVE-2024-49766? +

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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-49766? +

CVE-2024-49766 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-49766? +

CVE-2024-49766 affects products from microsoft, palletsprojects, specifically: werkzeug, windows. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-49766? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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