ed Hat Product Security has released a batch of updates addressing security vulnerabilities across several enterprise software packages. Important ratings apply to fixes for udisks2, osbuild-composer, and the JBoss Web Server which are now available on multiple Linux distributions. Only specific kernel updates carry a Moderate rating and are tied to Extended Update Support configurations.

RHSA-2026:5831: Important: udisks2 security update
RHSA-2026:5611: Important: Red Hat JBoss Web Server 6.2.1 release and security update
RHSA-2026:5612: Important: Red Hat JBoss Web Server 6.2.1 release and security update
RHSA-2026:5821: Moderate: kernel security update
RHSA-2026:5813: Moderate: kernel security update
RHSA-2026:5853: Important: osbuild-composer security update
RHSA-2026:5852: Important: osbuild-composer security update

RHSA-2026:5831: Important: udisks2 security update

An update for udisks2 is now available for Red Hat Enterprise Linux 10.0 Extended Update Support.

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.

RHSA-2026:5831: Important: udisks2 security update

RHSA-2026:5611: Important: Red Hat JBoss Web Server 6.2.1 release and security update

Red Hat JBoss Web Server 6.2.1 is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, and Red Hat Enterprise Linux 10.

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.

RHSA-2026:5611: Important: Red Hat JBoss Web Server 6.2.1 release and security update

RHSA-2026:5612: Important: Red Hat JBoss Web Server 6.2.1 release and security update

Red Hat JBoss Web Server 6.2.1 zip release is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 10, and Windows Server.

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.

RHSA-2026:5612: Important: Red Hat JBoss Web Server 6.2.1 release and security update

RHSA-2026:5821: Moderate: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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.

RHSA-2026:5821: Moderate: kernel security update

RHSA-2026:5813: Moderate: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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.

RHSA-2026:5813: Moderate: kernel security update

RHSA-2026:5853: Important: osbuild-composer security update

An update for osbuild-composer is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service.

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.

RHSA-2026:5853: Important: osbuild-composer security update

RHSA-2026:5852: Important: osbuild-composer security update

An update for osbuild-composer is now available for Red Hat Enterprise Linux 10.0 Extended Update Support.

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.

RHSA-2026:5852: Important: osbuild-composer security update