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HTTP Request Smuggling The advisory has been revoked - it doesn't affect any version of package logstash-9.1  (opens in a new tab)

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EPSS
0.7% (51st percentile)

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  • Snyk IDSNYK-WOLFILATEST-LOGSTASH91-16020443
  • published13 Apr 2026
  • disclosed27 Mar 2026
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Introduced: 27 Mar 2026

CVE-2026-33870  (opens in a new tab)
CWE-444  (opens in a new tab)

Amendment

The Wolfi security team deemed this advisory irrelevant for Wolfi:latest.

NVD Description

Note: Versions mentioned in the description apply only to the upstream logstash-9.1 package and not the logstash-9.1 package as distributed by Wolfi.

Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. Versions 4.1.132.Final and 4.2.10.Final fix the issue.

References