CVE-2026-40347 - Python-Multipart affected by Denial of Service via large multipart preamble or epilogue data
CVE ID :CVE-2026-40347
Published : April 18, 2026, 12:16 a.m. | 3 hours, 54 minutes ago
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.
Severity: 5.3 | MEDIUM
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Published : April 18, 2026, 12:16 a.m. | 3 hours, 54 minutes ago
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.
Severity: 5.3 | MEDIUM
Visit the link for more details, such as CVSS details, affected products, timeline, and more...