CVE-2026-24486— Python-Multipart has Arbitrary File Write via Non-Default Configuration
Quick assessment
Affected
Kludex python-multipart
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
python-multipart是Marcelo Trylesinski个人开发者的一个Python的流式多部分解析器。 Python-Multipart 0.0.22之前版本存在路径遍历漏洞，该漏洞源于使用非默认配置选项UPLOAD_DIR和UPLOAD_KEEP_FILENAME=True时存在路径遍历问题，可能导致上传文件到任意位置。
Public Exploits 1
ExploitDB · 1
EDB-52543 [webapps]
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1105 · Ingress Tool TransferAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Kludex | python-multipart | < 0.0.22 |
affected |
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I. Basic Information for CVE-2026-24486
Vulnerability Information
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Vulnerability Title
Python-Multipart has Arbitrary File Write via Non-Default Configuration
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
python-multipart 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
python-multipart是Marcelo Trylesinski个人开发者的一个Python的流式多部分解析器。 Python-Multipart 0.0.22之前版本存在路径遍历漏洞，该漏洞源于使用非默认配置选项UPLOAD_DIR和UPLOAD_KEEP_FILENAME=True时存在路径遍历问题，可能导致上传文件到任意位置。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Kludex | python-multipart | < 0.0.22 | - |
|
II. Public POCs for CVE-2026-24486
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-24486 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-24486
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