# CVE-2026-24486: python3-multipart: Python-Multipart is a streaming multipart parser for Python

CVE-2026-24486 is fixed in 3 products on 1 platform, first by python3-multipart 0.0.5-2ubuntu0.1~esm1, released January 26, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-24486
- Priority: High
- CVSS: 7.5 (Medium)
- EPSS: 0.0221
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 26, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-multipart Debian 13.5 (trixie) | 0.0.20-1.1~deb13u1 | [DEBIAN-CVE-2026-24486](https://patchblox.com/security/data/fix/linux/debian-cve-2026-24486.md) | Jan 27, 2026 |
| Linux | python-multipart Debian 14 | 0.0.20-1.1 | [DEBIAN-CVE-2026-24486](https://patchblox.com/security/data/fix/linux/debian-cve-2026-24486.md) | Jan 27, 2026 |
| Linux | python-python-multipart opensuse-leap 15.6 | 0.0.9-150600.3.6.1 | [SUSE-SU-2026:0307-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0307-1.md) | Jan 27, 2026 |
| Linux | python-python-multipart opensuse-leap 16.0 | 0.0.20-160000.3.1 | [OPENSUSE-SU-2026:20125-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20125-1.md) | Jan 28, 2026 |
| Linux | python-python-multipart sles 16.0 | 0.0.20-160000.3.1 | [SUSE-SU-2026:20188-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20188-1.md) | Jan 28, 2026 |
| Linux | python3-multipart Ubuntu 22.04.1 LTS (jammy) | 0.0.5-2ubuntu0.1~esm1 | [python3-multipart 0.0.5-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-multipart-0.0.5-2ubuntu0.1-esm1.md) | Jan 26, 2026 |
| Linux | python3-multipart Ubuntu 24.04.5 LTS (noble) | 0.0.9-1ubuntu0.1~esm1 | [python3-multipart 0.0.9-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-python3-multipart-0.0.9-1ubuntu0.1-esm1.md) | Jan 26, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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