← CVE Intelligence

CVE-2026-40347

Python-Multipart affected by Denial of Service via large multipart preamble or epilogue data PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Kludex / python-multipartaffected < 0.0.26

CWE

CWE-400, CWE-834

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.