HTTP Request Smuggling Affecting strimzi-kafka-operator package, versions <0.51.0-r25


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-STRIMZIKAFKAOPERATOR-16783753
  • published21 May 2026
  • disclosed13 May 2026

Introduced: 13 May 2026

NewCVE-2026-42581  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Chainguard strimzi-kafka-operator to version 0.51.0-r25 or higher.

NVD Description

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

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, HttpObjectDecoder strips a conflicting Content-Length header when a request carries both Transfer-Encoding: chunked and Content-Length, but only for HTTP/1.1 messages. The guard is absent for HTTP/1.0. An attacker that sends an HTTP/1.0 request with both headers causes Netty to decode the body as chunked while leaving Content-Length intact in the forwarded HttpMessage. Any downstream proxy or handler that trusts Content-Length over Transfer-Encoding will disagree on message boundaries, enabling request smuggling. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

CVSS Base Scores

version 3.1