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cpe:2.3:a:python-hyper:h11:*:*:*:*:*:*:*:*

part: a version: * update: *

VendorPython Hyper (8ae8a819-bf0f-588d-a1c0-e13104b65a6e)
ProductH11 (ff59a5f6-1364-5a40-9c8f-7c35754beb65)
Edition*
Language*
Software edition*
Target software*
Target hardware*
Other*
NotesImported from gcve-enriched-dumps CVE data

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Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2025-43859 vulnerable 2026-06-08 07:25:10.406421 h11 accepts some malformed Chunked-Encoding bodies
CRITICAL (9.1)
h11 is a Python implementation of HTTP/1.1. Prior to version 0.16.0, a leniency in h11's parsing of line terminators in chunked-coding message bodies can lead to request smuggling vulnerabilities under certain conditions. This issue has been patched in version 0.16.0. Since exploitation requires the combination of buggy h11 with a buggy (reverse) proxy, fixing either component is sufficient to mitigate this issue.
Published: 2025-04-24T18:15:53.328Z
Updated: 2025-04-24T19:02:45.130Z
Reference links
Imported from gcve-enriched-dumps CVE data

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