Path Traversal Vulnerability in Python-Multipart by Kludex
CVE-2026-24486

8.6HIGH

Key Information:

Vendor

Kludex

Status
Python-multipart
Vendor
CVE Published:
27 January 2026

What is CVE-2026-24486?

A Path Traversal vulnerability is present in Python-Multipart prior to version 0.0.22, affecting applications that use specific configurations for file uploads. By exploiting this vulnerability, an attacker can craft a malicious filename to upload files to arbitrary locations on the server’s filesystem. This flaw arises when the non-default configuration options UPLOAD_DIR and UPLOAD_KEEP_FILENAME=True are utilized. To mitigate this vulnerability, users are advised to upgrade to version 0.0.22. As an alternative, disabling the UPLOAD_KEEP_FILENAME=True option in project settings can help reduce exposure.

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Affected Version(s)

python-multipart < 0.0.22

References

https://github.com/Kludex/python-multipart/security/advis...
x_refsource_CONFIRM
https://github.com/Kludex/python-multipart/commit/9433f4b...
x_refsource_MISC
https://github.com/Kludex/python-multipart/releases/tag/0...
x_refsource_MISC

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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