RHSA-2026:1823 — Security Advisory

Red Hat Security Advisory: JMC bug fix and enhancement update

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Severity

Important

Red Hat Product Security

RHEL 9

Products

Official CSAF product identity

Published · February 3, 2026

Updated · October 20, 2026

Topic

An update for JDK Mission Control (JMC) is now available for Red Hat Enterprise Linux 9.4 Extended Update Support.

Description

JDK Mission Control (JMC) is a powerful profiler for HotSpot JVMs and has an advanced set of tools that enables efficient and detailed analysis of the extensive data collected by JDK Flight Recorder. The tool chain enables developers and administrators to collect and analyze data from Java applications running locally or deployed in production environments.

Bug Fix(es) and Enhancement(s):

jmc: lz4-java: Information Disclosure via Insufficient Output Buffer Clearing [rhel-9.4.z] (JIRA:RHEL-135476)

Related CVEs

CVE-2025-66566 ↗