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CVE-2026-24486

Python-Multipart has Arbitrary File Write via Non-Default Configuration

CVSS 3.1 8.6 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-24486

Published

Python-Multipart is a streaming multipart parser for Python. Prior to version 0.0.22, a Path Traversal vulnerability exists when using non-default configuration options `UPLOAD_DIR` and `UPLOAD_KEEP_FILENAME=True`. An attacker can write uploaded files to arbitrary locations on the filesystem by crafting a malicious filename. Users should upgrade to version 0.0.22 to receive a patch or, as a workaround, avoid using `UPLOAD_KEEP_FILENAME=True` in project configurations.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-24486

Published

python-multipart

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Kludex",
                    "product": "python-multipart",
                    "versions": [
                        {
                            "version": "< 0.0.22",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON