Description

Python-Multipart is a streaming multipart parser for Python. Versions prior to 0.0.26 have a denial of service vulnerability when parsing crafted `multipart/form-data` requests with large preamble or epilogue sections. Upgrade to version 0.0.26 or later, which skips ahead to the next boundary candidate when processing leading CR/LF data and immediately discards epilogue data after the closing boundary.

INFO

Published Date :

2026-04-17T23:56:50.777Z

Last Modified :

2026-04-17T23:56:50.777Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-40347 vulnerability.

Vendors Products
Kludex
  • Python-multipart
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40347.

URL Resource
https://github.com/Kludex/python-multipart/releases/tag/0.0.26 cve-icon cve-icon
https://github.com/Kludex/python-multipart/security/advisories/GHSA-mj87-hwqh-73pj cve-icon cve-icon
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