CVE-2024-49766

Name: CVE-2024-49766
Creator: NVD / NIST
Published: 2024-10-25T20:15:04.41+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.3/10EPSS 0.79%

Last modified Jun 17, 2026

CVE-2024-49766 is a medium-severity vulnerability rated 6.3/10 on the CVSS scale. 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. EPSS estimates a 0.79% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

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

CVSS 4.0

6.3/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.79%

51.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Palletsprojects	Werkzeug	< 3.0.6

References

https://github.com/pallets/werkzeug/commit/2767bcb10a7dd1c297d812cc5e6d11a474c1f092Patch
https://github.com/pallets/werkzeug/releases/tag/3.0.6Release Notes
https://github.com/pallets/werkzeug/security/advisories/GHSA-f9vj-2wh5-fj8jVendor Advisory
https://security.netapp.com/advisory/ntap-20250131-0005/Third Party Advisory

Timeline

Published: Oct 25, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-49766?

How severe is CVE-2024-49766?

CVE-2024-49766 has a CVSS score of 6.3/10 (MEDIUM severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.

How do I fix CVE-2024-49766?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-49766?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST