RHSA-2026:20568 — Security Advisory

An update for jmc is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

JDK Mission Control 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.

Security Fix(es):

• lz4-java: lz4-java: Information Disclosure via Insufficient Output Buffer Clearing (CVE-2025-66566)

• org.eclipse.jetty/jetty-http: HTTP request smuggling via chunked extension quoted-string parsing (CVE-2026-2332)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.