Red Hat 9365 Published by

Red Hat has released several updates to address security vulnerabilities in various packages. These updates include important patches for mingw-libpng, opentelemetry-collector, and thunderbird on Red Hat Enterprise Linux 8, 9.4 Extended Update Support, and 10.0 Extended Update Support, respectively. Additionally, there are moderate security updates available for kernel, gnutls, osbuild-composer, php, libpng15, python3.11, and other packages across different versions of Red Hat Enterprise Linux.

RHSA-2026:4306: Important: mingw-libpng security update
RHSA-2026:4267: Important: opentelemetry-collector security update
RHSA-2026:4264: Important: opentelemetry-collector security update
RHSA-2026:4260: Important: thunderbird security update
RHSA-2026:3851: Moderate: OpenShift Container Platform 4.20.16 packages and security update
RHSA-2026:4256: Important: opentelemetry-collector security update
RHSA-2026:3875: Important: OpenShift Container Platform 4.18.35 packages and security update
RHSA-2026:3876: Moderate: OpenShift Container Platform 4.18.35 bug fix and security update
RHSA-2026:4254: Important: postgresql:15 security update
RHSA-2026:4246: Moderate: kernel security update
RHSA-2026:4243: Moderate: kernel security update
RHSA-2026:4242: Moderate: kernel security update
RHSA-2026:4244: Moderate: kernel-rt security update
RHSA-2026:4188: Moderate: gnutls security update
RHSA-2026:4211: Important: osbuild-composer security update
RHSA-2026:4285: Important: Red Hat build of Debezium 3.2.7 release
RHSA-2026:4266: Moderate: php security update
RHSA-2026:4221: Important: libpng15 security update
RHSA-2026:4222: Important: libpng15 security update
RHSA-2026:4212: Moderate: php security update
RHSA-2026:3861: Important: OpenShift Container Platform 4.12.86 bug fix and security update
RHSA-2026:4216: Moderate: python3.11 security update




RHSA-2026:4306: Important: mingw-libpng security update


An update for mingw-libpng 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-2026:4306: Important: mingw-libpng security update



RHSA-2026:4267: Important: opentelemetry-collector security update


An update for opentelemetry-collector 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-2026:4267: Important: opentelemetry-collector security update



RHSA-2026:4264: Important: opentelemetry-collector security update


An update for opentelemetry-collector 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-2026:4264: Important: opentelemetry-collector security update



RHSA-2026:4260: Important: thunderbird security update


An update for thunderbird 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-2026:4260: Important: thunderbird security update



RHSA-2026:3851: Moderate: OpenShift Container Platform 4.20.16 packages and security update


Red Hat OpenShift Container Platform release 4.20.16 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 4.20.

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-2026:3851: Moderate: OpenShift Container Platform 4.20.16 packages and security update



RHSA-2026:4256: Important: opentelemetry-collector security update


An update for opentelemetry-collector 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-2026:4256: Important: opentelemetry-collector security update



RHSA-2026:3875: Important: OpenShift Container Platform 4.18.35 packages and security update


Red Hat OpenShift Container Platform release 4.18.35 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 4.18.
sha256:0a43bf979ac93078a64c99f078b6097634920909f9acbaa18d494b7203b33a52
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-2026:3875: Important: OpenShift Container Platform 4.18.35 packages and security update



RHSA-2026:3876: Moderate: OpenShift Container Platform 4.18.35 bug fix and security update


Red Hat OpenShift Container Platform release 4.18.35 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 4.18.

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-2026:3876: Moderate: OpenShift Container Platform 4.18.35 bug fix and security update



RHSA-2026:4254: Important: postgresql:15 security update


An update for the postgresql:15 module 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 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-2026:4254: Important: postgresql:15 security update



RHSA-2026:4246: Moderate: kernel security update


An update for kernel 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 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-2026:4246: Moderate: kernel security update



RHSA-2026:4243: Moderate: kernel security update


An update for kernel 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 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-2026:4243: Moderate: kernel security update



RHSA-2026:4242: Moderate: kernel security update


An update for kernel 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 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-2026:4242: Moderate: kernel security update



RHSA-2026:4244: Moderate: kernel-rt security update


An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 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-2026:4244: Moderate: kernel-rt security update



RHSA-2026:4188: Moderate: gnutls security update


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

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-2026:4188: Moderate: gnutls security update



RHSA-2026:4211: Important: osbuild-composer security update


An update for osbuild-composer 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-2026:4211: Important: osbuild-composer security update



RHSA-2026:4285: Important: Red Hat build of Debezium 3.2.7 release


Red Hat build of Debezium connectors in version 3.2.7 are now available for Red Hat Application Foundations.


RHSA-2026:4285: Important: Red Hat build of Debezium 3.2.7 release



RHSA-2026:4266: Moderate: php security update


An update for php 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-2026:4266: Moderate: php security update



RHSA-2026:4221: Important: libpng15 security update


An update for libpng15 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 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-2026:4221: Important: libpng15 security update



RHSA-2026:4222: Important: libpng15 security update


An update for libpng15 is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.

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-2026:4222: Important: libpng15 security update



RHSA-2026:4212: Moderate: php security update


An update for php is now available for Red Hat Enterprise Linux 9.0 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-2026:4212: Moderate: php security update



RHSA-2026:3861: Important: OpenShift Container Platform 4.12.86 bug fix and security update


Red Hat OpenShift Container Platform release 4.12.86 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 4.12.

Red Hat Product Security has rated this update as having a security impact
of Low. 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-2026:3861: Important: OpenShift Container Platform 4.12.86 bug fix and security update



RHSA-2026:4216: Moderate: python3.11 security update


An update for python3.11 is now available for Red Hat Enterprise Linux 9.

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-2026:4216: Moderate: python3.11 security update