Red Hat Security Advisory: jmc security update
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.
AI Analysis
Technical Summary
The advisory covers two security fixes for JDK Mission Control on Red Hat Enterprise Linux 9. The first vulnerability (CVE-2025-66566) involves information disclosure caused by insufficient clearing of output buffers in the lz4-java library. The second vulnerability (CVE-2026-2332) is an HTTP request smuggling flaw in the org.eclipse.jetty/jetty-http component, specifically related to parsing chunked extension quoted-strings. Both issues have been addressed in updated packages provided by Red Hat. The advisory references Red Hat's errata RHSA-2026:20568 and directs users to official update instructions.
Potential Impact
The information disclosure vulnerability could allow unauthorized access to sensitive data due to improper buffer clearing. The HTTP request smuggling vulnerability could enable an attacker to interfere with HTTP request processing, potentially leading to security bypass or manipulation of web traffic. Red Hat rates the overall security impact as Important, indicating a high severity but not critical. There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released updated packages for JDK Mission Control that address these vulnerabilities. Users running affected versions on Red Hat Enterprise Linux 9 and related CodeReady Linux Builder products should apply the security update as described in Red Hat advisory RHSA-2026:20568 and the referenced update article (https://access.redhat.com/articles/11258). No additional mitigations are specified by the vendor beyond applying the official update.
Red Hat Security Advisory: jmc security update
Description
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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The advisory covers two security fixes for JDK Mission Control on Red Hat Enterprise Linux 9. The first vulnerability (CVE-2025-66566) involves information disclosure caused by insufficient clearing of output buffers in the lz4-java library. The second vulnerability (CVE-2026-2332) is an HTTP request smuggling flaw in the org.eclipse.jetty/jetty-http component, specifically related to parsing chunked extension quoted-strings. Both issues have been addressed in updated packages provided by Red Hat. The advisory references Red Hat's errata RHSA-2026:20568 and directs users to official update instructions.
Potential Impact
The information disclosure vulnerability could allow unauthorized access to sensitive data due to improper buffer clearing. The HTTP request smuggling vulnerability could enable an attacker to interfere with HTTP request processing, potentially leading to security bypass or manipulation of web traffic. Red Hat rates the overall security impact as Important, indicating a high severity but not critical. There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released updated packages for JDK Mission Control that address these vulnerabilities. Users running affected versions on Red Hat Enterprise Linux 9 and related CodeReady Linux Builder products should apply the security update as described in Red Hat advisory RHSA-2026:20568 and the referenced update article (https://access.redhat.com/articles/11258). No additional mitigations are specified by the vendor beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:20568
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-2332"]
Threat ID: 6a16097be29bf47b506476df
Added to database: 05/26/2026, 20:58:35 UTC
Last enriched: 08/16/2026, 18:21:14 UTC
Last updated: 09/13/2026, 22:01:30 UTC
Views: 97
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