HTTP Request Smuggling Affecting kafka-4.1 package, versions <4.1.2-r13


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.31% (21st percentile)

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  • Snyk IDSNYK-WOLFILATEST-KAFKA41-20939911
  • published14 Oct 2026
  • disclosed8 Sept 2026

Introduced: 8 Sep 2026

CVE-2026-19203  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Wolfi kafka-4.1 to version 4.1.2-r13 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kafka-4.1 package and not the kafka-4.1 package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

A client may issue specially crafted HTTP/1.1 chunked requests to a Jetty server that cause Jetty and an intermediary proxy to interpret different request boundaries, potentially resulting in HTTP request smuggling.

This is caused by Jetty accepting a lone LF character as a terminator in parts of chunked request parsing. Depending on the Jetty version and configured HTTP compliance mode, this may occur in chunk extensions, chunk data termination, or trailer termination.

CVSS Base Scores

version 3.1