Red Hat Product Security has released multiple advisories addressing vulnerabilities across various software packages used in their enterprise Linux distributions. Several updates carry an Important rating, including critical patches for OpenSSH, Vim, and different versions of libpng on RHEL 8, 9, and 10. Moderate severity fixes are also available for components such as MariaDB, rsync, and Python 3 modules depending on the specific platform version in use by your organization.

RHSA-2026:6445: Important: libpng12 security update
RHSA-2026:6439: Important: libpng15 security update
RHSA-2026:6435: Moderate: mariadb:10.11 security update
RHSA-2026:6436: Moderate: rsync security update
RHSA-2026:6427: Moderate: nginx:1.26 security update
RHSA-2026:6462: Important: openssh security update
RHSA-2026:6470: Important: perl-YAML-Syck security update
RHSA-2026:6469: Important: libpng15 security update
RHSA-2026:6468: Important: libpng15 security update
RHSA-2026:6463: Important: openssh security update
RHSA-2026:6464: Moderate: python3 security update
RHSA-2026:6473: Important: python3 security update
RHSA-2026:5873: Moderate: OpenShift Container Platform 4.16.59 bug fix and security update
RHSA-2026:6478: Important: Red Hat build of Keycloak 26.4.11 Images Update
RHSA-2026:6477: Important: Red Hat build of Keycloak 26.4.11 Update
RHSA-2026:6539: Important: vim security update
RHSA-2026:6540: Important: vim security update
RHSA-2026:6502: Important: vim security update
RHSA-2026:6499: Moderate: libxslt security update
RHSA-2026:6481: Important: Updated service-interconnect rhel9 container images for 1.8
RHSA-2026:6476: Important: Red Hat build of Keycloak 26.2.15 Images Update
RHSA-2026:6475: Important: Red Hat build of Keycloak 26.2.15 Update
RHSA-2026:6461: Important: openssh security update
RHSA-2026:6467: Important: libpng15 security update
RHSA-2026:6466: Important: libpng15 security update

RHSA-2026:6445: Important: libpng12 security update

An update for libpng12 is now available for Red Hat Enterprise Linux 8.

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-2026:6445: Important: libpng12 security update

RHSA-2026:6439: Important: libpng15 security update

An update for libpng15 is now available for Red Hat Enterprise Linux 8.

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-2026:6439: Important: libpng15 security update

RHSA-2026:6435: Moderate: mariadb:10.11 security update

An update for the mariadb:10.11 module is now available for Red Hat Enterprise Linux 8.

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-2026:6435: Moderate: mariadb:10.11 security update

RHSA-2026:6436: Moderate: rsync security update

An update for rsync is now available for Red Hat Enterprise Linux 8.

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-2026:6436: Moderate: rsync security update

RHSA-2026:6427: Moderate: nginx:1.26 security update

An update for the nginx:1.26 module is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.

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-2026:6427: Moderate: nginx:1.26 security update

RHSA-2026:6462: Important: openssh security update

An update for openssh 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.

RHSA-2026:6462: Important: openssh security update

RHSA-2026:6470: Important: perl-YAML-Syck security update

An update for perl-YAML-Syck is now available for Red Hat Enterprise Linux 8.

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-2026:6470: Important: perl-YAML-Syck security update

RHSA-2026:6469: Important: libpng15 security update

An update for libpng15 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-2026:6469: Important: libpng15 security update

RHSA-2026:6468: Important: libpng15 security update

An update for libpng15 is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 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-2026:6468: Important: libpng15 security update

RHSA-2026:6463: Important: openssh security update

An update for openssh is now available for 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-2026:6463: Important: openssh security update

RHSA-2026:6464: Moderate: python3 security update

An update for python3 is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support.

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-2026:6464: Moderate: python3 security update

RHSA-2026:6473: Important: python3 security update

An update for python3 is now available for Red Hat Enterprise Linux 8.

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-2026:6473: Important: python3 security update

RHSA-2026:5873: Moderate: OpenShift Container Platform 4.16.59 bug fix and security update

Red Hat OpenShift Container Platform release 4.16.59 is now available with updates to packages and images that fix several bugs and add enhancements.

This release includes a security update for Red Hat OpenShift Container Platform 4.16.

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-2026:5873: Moderate: OpenShift Container Platform 4.16.59 bug fix and security update

RHSA-2026:6478: Important: Red Hat build of Keycloak 26.4.11 Images Update

New images are available for Red Hat build of Keycloak 26.4.11 and Red Hat build of Keycloak 26.4.11 Operator, running on OpenShift Container Platform

RHSA-2026:6478: Important: Red Hat build of Keycloak 26.4.11 Images Update

RHSA-2026:6477: Important: Red Hat build of Keycloak 26.4.11 Update

New Red Hat build of Keycloak 26.4.11 packages are available from the Customer Portal

RHSA-2026:6477: Important: Red Hat build of Keycloak 26.4.11 Update

RHSA-2026:6539: Important: vim security update

An update for vim is now available for Red Hat Enterprise Linux 9.6 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-2026:6539: Important: vim security update

RHSA-2026:6540: Important: vim security update

An update for vim is now available for Red Hat Enterprise Linux 9.4 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-2026:6540: Important: vim security update

RHSA-2026:6502: Important: vim security update

An update for vim 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-2026:6502: Important: vim security update

RHSA-2026:6499: Moderate: libxslt security update

An update for libxslt is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.

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-2026:6499: Moderate: libxslt security update

RHSA-2026:6481: Important: Updated service-interconnect rhel9 container images for 1.8

Updated service-interconnect container images are now available for Service Interconnect 1.8 for RHEL 9.

RHSA-2026:6481: Important: Updated service-interconnect rhel9 container images for 1.8

RHSA-2026:6476: Important: Red Hat build of Keycloak 26.2.15 Images Update

New images are available for Red Hat build of Keycloak 26.2.15 and Red Hat build of Keycloak 26.2.15 Operator, running on OpenShift Container Platform

RHSA-2026:6476: Important: Red Hat build of Keycloak 26.2.15 Images Update

RHSA-2026:6475: Important: Red Hat build of Keycloak 26.2.15 Update

New Red Hat build of Keycloak 26.2.15 packages are available from the Customer Portal

RHSA-2026:6475: Important: Red Hat build of Keycloak 26.2.15 Update

RHSA-2026:6461: Important: openssh security update

An update for openssh is now available for Red Hat Enterprise Linux 8.

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-2026:6461: Important: openssh security update

RHSA-2026:6467: Important: libpng15 security update

An update for libpng15 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 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-2026:6467: Important: libpng15 security update

RHSA-2026:6466: Important: libpng15 security update

An update for libpng15 is now available for Red Hat Enterprise Linux 8.2 Advanced 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-2026:6466: Important: libpng15 security update