Red Hat has released a batch of important security advisories covering multiple software packages across various RHEL versions and specialized update services. The updates address critical vulnerabilities in widely used tools like .NET, OpenJDK, Python, and the Linux kernel, while also patching specialized components such as freerdp and squid. Red Hat Product Security has classified each advisory with an important impact level, and administrators can review detailed CVSS base scores alongside specific CVE references to understand the exact risks. System administrators should prioritize applying these patches to their respective environments to maintain a secure infrastructure and prevent potential exploitation of the identified flaws.

RHSA-2026:10091: Important: .NET 8.0 security update
RHSA-2026:10076: Important: freerdp security update
RHSA-2026:10085: Important: .NET 9.0 security update
RHSA-2026:10084: Important: .NET 8.0 security update
RHSA-2026:10082: Important: .NET 8.0 security update
RHSA-2026:10083: Important: .NET 9.0 security update
RHSA-2026:9691: Important: OpenJDK 21.0.11 Security Update for Windows Builds
RHSA-2026:9694: Important: OpenJDK 25.0.3 Security Update for Portable Linux Builds
RHSA-2026:9688: Important: OpenJDK 17.0.19 Security Update for Windows Builds
RHSA-2026:9684: Important: OpenJDK 8u492 Security Update for Portable Linux Builds
RHSA-2026:9687: Important: OpenJDK 17.0.19 Security Update for Portable Linux Builds
RHSA-2026:10111: Important: python3.12 security update
RHSA-2026:10169: Important: rhc-worker-playbook security update
RHSA-2026:10255: Important: squid security update
RHSA-2026:10108: Important: kernel security update
RHSA-2026:10256: Important: squid security update
RHSA-2026:10257: Important: squid security update
RHSA-2026:10223: Important: grafana security update
RHSA-2026:10107: Important: rhc security update
RHSA-2026:10133: Important: golang-github-openprinting-ipp-usb security update
RHSA-2026:10101: Important: python3.9 security update
RHSA-2026:9690: Important: OpenJDK 21.0.11 Security Update for Portable Linux Builds
RHSA-2026:9685: Important: OpenJDK 8u492 Windows Security Update
RHSA-2026:10102: Important: python security update

RHSA-2026:10091: Important: .NET 8.0 security update

An update for .NET 8.0 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-2026:10091: Important: .NET 8.0 security update

RHSA-2026:10076: Important: freerdp security update

An update for freerdp 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-2026:10076: Important: freerdp security update

RHSA-2026:10085: Important: .NET 9.0 security update

An update for .NET 9.0 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-2026:10085: Important: .NET 9.0 security update

RHSA-2026:10084: Important: .NET 8.0 security update

An update for .NET 8.0 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-2026:10084: Important: .NET 8.0 security update

RHSA-2026:10082: Important: .NET 8.0 security update

An update for .NET 8.0 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-2026:10082: Important: .NET 8.0 security update

RHSA-2026:10083: Important: .NET 9.0 security update

An update for .NET 9.0 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-2026:10083: Important: .NET 9.0 security update

RHSA-2026:9691: Important: OpenJDK 21.0.11 Security Update for Windows Builds

An update is now available for OpenJDK.

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-2026:9691: Important: OpenJDK 21.0.11 Security Update for Windows Builds

RHSA-2026:9694: Important: OpenJDK 25.0.3 Security Update for Portable Linux Builds

An update is now available for OpenJDK.

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-2026:9694: Important: OpenJDK 25.0.3 Security Update for Portable Linux Builds

RHSA-2026:9688: Important: OpenJDK 17.0.19 Security Update for Windows Builds

An update is now available for OpenJDK.

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-2026:9688: Important: OpenJDK 17.0.19 Security Update for Windows Builds

RHSA-2026:9684: Important: OpenJDK 8u492 Security Update for Portable Linux Builds

An update is now available for OpenJDK.

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-2026:9684: Important: OpenJDK 8u492 Security Update for Portable Linux Builds

RHSA-2026:9687: Important: OpenJDK 17.0.19 Security Update for Portable Linux Builds

An update is now available for OpenJDK.

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-2026:9687: Important: OpenJDK 17.0.19 Security Update for Portable Linux Builds

RHSA-2026:10111: Important: python3.12 security update

An update for python3.12 is now available for Red Hat Enterprise Linux 9.4 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-2026:10111: Important: python3.12 security update

RHSA-2026:10169: Important: rhc-worker-playbook security update

An update for rhc-worker-playbook 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-2026:10169: Important: rhc-worker-playbook security update

RHSA-2026:10255: Important: squid security update

An update for squid 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-2026:10255: Important: squid security update

RHSA-2026:10108: Important: 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 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-2026:10108: Important: kernel security update

RHSA-2026:10256: Important: squid security update

An update for squid 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-2026:10256: Important: squid security update

RHSA-2026:10257: Important: squid security update

An update for squid 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-2026:10257: Important: squid security update

RHSA-2026:10223: Important: grafana security update

An update for grafana 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-2026:10223: Important: grafana security update

RHSA-2026:10107: Important: rhc security update

An update for rhc 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-2026:10107: Important: rhc security update

RHSA-2026:10133: Important: golang-github-openprinting-ipp-usb security update

An update for golang-github-openprinting-ipp-usb 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-2026:10133: Important: golang-github-openprinting-ipp-usb security update

RHSA-2026:10101: Important: python3.9 security update

An update for python3.9 is now available for Red Hat Enterprise Linux 9.4 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-2026:10101: Important: python3.9 security update

RHSA-2026:9690: Important: OpenJDK 21.0.11 Security Update for Portable Linux Builds

An update is now available for OpenJDK.

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-2026:9690: Important: OpenJDK 21.0.11 Security Update for Portable Linux Builds

RHSA-2026:9685: Important: OpenJDK 8u492 Windows Security Update

An update is now available for OpenJDK.

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-2026:9685: Important: OpenJDK 8u492 Windows Security Update

RHSA-2026:10102: Important: python security update

An update for python is now available for Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION.

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-2026:10102: Important: python security update