PJ Fanning created HADOOP-20070:
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Summary: upgrade to netty 4.2.20
Key: HADOOP-20070
URL: https://issues.apache.org/jira/browse/HADOOP-20070
Project: Hadoop Common
Issue Type: Task
Reporter: PJ Fanning
https://netty.io/news/2026/11/02/4-2-20-Final.html includes a large number of
CVE fixes.
So far, Hadoop has stuck with Netty 4.1.x but that is EOL since the middle of
2026.
Upgrading from 4.1 has been straightforward where I've done this before (eg
Apache Pekko).
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