Path Traversal in Microsoft Windows
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (55.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Microsoft Windows
- Pallets Werkzeug — versions < 3.0.6
- Palletsprojects Werkzeug
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/pallets/werkzeug/security/advisories/GHSA-f9vj-2wh5-fj8j (Vendor Advisory)
- github.com/pallets/werkzeug/commit/2767bcb10a7dd1c297d812cc5e6d11a474c1f092 (Patch)
- github.com/pallets/werkzeug/releases/tag/3.0.6 (Release Notes)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
Frequently asked questions
- What is CVE-2024-49766?
- CVE-2024-49766 is a medium-severity vulnerability in Microsoft Windows, classified under Path Traversal. CVSS score: 5.3/10. Published 2024-10-25.
- How severe is CVE-2024-49766?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2024-49766 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.