Potential Security Vulnerability in Werkzeug's os.path.isabs() Function
CVE-2024-49766

6.3MEDIUM

Key Information:

Vendor

Pallets

Status
Werkzeug
Vendor
CVE Published:
25 October 2024

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.

Affected Version(s)

werkzeug < 3.0.6

References

https://github.com/pallets/werkzeug/security/advisories/G...
x_refsource_CONFIRM
https://github.com/pallets/werkzeug/commit/2767bcb10a7dd1...
x_refsource_MISC
https://github.com/pallets/werkzeug/releases/tag/3.0.6
x_refsource_MISC

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2024-49766 : Potential Security Vulnerability in Werkzeug's os.path.isabs() Function