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Red Hat issued a batch of security advisories for Red Hat Enterprise Linux ranging from version 7 to 10, with most updates rated as having an Important impact while one patch for OpenShift Container Platform 4.15.66 received a Critical rating. The advisories address vulnerabilities and bug fixes across a wide array of software including the kernel, kernel-rt, Ruby, Node.js, Grafana, Grafana PCP, and various support modules like fence-agents and container-tools. Additional fixes target plexus-utils, maven, libreoffice, libpq, compat-openssl11, kpatch-patch-6_12_0-211_16_1, and nodejs22 or nodejs24 modules across multiple support streams including Extended Update Support and SAP Solutions.

RHSA-2026:35867: Important: ruby:2.5 security update
RHSA-2026:35866: Important: ruby:2.5 security update
RHSA-2026:35837: Important: fence-agents security update
RHSA-2026:35829: Important: grafana-pcp security update
RHSA-2026:35835: Important: fence-agents security update
RHSA-2026:35842: Important: nodejs22 security, bug fix, and enhancement update
RHSA-2026:35836: Important: fence-agents security update
RHSA-2026:35863: Important: kernel security, bug fix, and enhancement update
RHSA-2026:35840: Important: kernel security, bug fix, and enhancement update
RHSA-2026:35841: Important: nodejs24 security, bug fix, and enhancement update
RHSA-2026:35844: Important: kernel security update
RHSA-2026:35830: Important: grafana security update
RHSA-2026:35834: Important: ruby security update
RHSA-2026:35831: Important: grafana-pcp security update
RHSA-2026:35828: Important: grafana security update
RHSA-2026:35880: Important: libpq security update
RHSA-2026:35869: Important: compat-openssl11 security update
RHSA-2026:35870: Important: kpatch-patch-6_12_0-211_16_1 security update
RHSA-2026:35839: Important: libreoffice security update
RHSA-2026:35833: Important: container-tools:rhel8 security update
RHSA-2026:28961: Important: OpenShift Container Platform 4.15.66 packages and security update
RHSA-2026:28962: Critical: OpenShift Container Platform 4.15.66 bug fix and security update
RHSA-2026:35997: Important: plexus-utils security update
RHSA-2026:35996: Important: maven:3.8 security update
RHSA-2026:35991: Important: plexus-utils security update
RHSA-2026:35895: Important: ruby security update
RHSA-2026:36049: Important: kernel-rt security, bug fix, and enhancement update
RHSA-2026:36018: Important: kernel security, bug fix, and enhancement update
RHSA-2026:36012: Important: maven:3.9 security update
RHSA-2026:35992: Important: plexus-utils security update
RHSA-2026:35990: Important: plexus-utils security update
RHSA-2026:35892: Important: nodejs:22 security, bug fix, and enhancement update
RHSA-2026:35891: Important: nodejs:24 security, bug fix, and enhancement update
RHSA-2026:35904: Important: kernel-rt security update
RHSA-2026:35896: Important: kernel security update
RHSA-2026:35894: Important: kernel security update




RHSA-2026:35867: Important: ruby:2.5 security update


An update for the ruby:2.5 module is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 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-2026:35867: Important: ruby:2.5 security update



RHSA-2026:35866: Important: ruby:2.5 security update


An update for the ruby:2.5 module 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-2026:35866: Important: ruby:2.5 security update



RHSA-2026:35837: Important: fence-agents security update


An update for fence-agents 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-2026:35837: Important: fence-agents security update



RHSA-2026:35829: Important: grafana-pcp security update


An update for grafana-pcp 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-2026:35829: Important: grafana-pcp security update



RHSA-2026:35835: Important: fence-agents security update


An update for fence-agents 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-2026:35835: Important: fence-agents security update



RHSA-2026:35842: Important: nodejs22 security, bug fix, and enhancement update


An update for nodejs22 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-2026:35842: Important: nodejs22 security, bug fix, and enhancement update



RHSA-2026:35836: Important: fence-agents security update


An update for fence-agents 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-2026:35836: Important: fence-agents security update



RHSA-2026:35863: Important: kernel security, bug fix, and enhancement 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 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-2026:35863: Important: kernel security, bug fix, and enhancement update



RHSA-2026:35840: Important: kernel security, bug fix, and enhancement update


An update for kernel 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-2026:35840: Important: kernel security, bug fix, and enhancement update



RHSA-2026:35841: Important: nodejs24 security, bug fix, and enhancement update


An update for nodejs24 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-2026:35841: Important: nodejs24 security, bug fix, and enhancement update



RHSA-2026:35844: Important: kernel security update


An update for kernel 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 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-2026:35844: Important: kernel security update



RHSA-2026:35830: Important: grafana security update


An update for grafana 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-2026:35830: Important: grafana security update



RHSA-2026:35834: Important: ruby security update


An update for ruby 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-2026:35834: Important: ruby security update



RHSA-2026:35831: Important: grafana-pcp security update


An update for grafana-pcp 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-2026:35831: Important: grafana-pcp security update



RHSA-2026:35828: Important: grafana security update


An update for grafana 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-2026:35828: Important: grafana security update



RHSA-2026:35880: Important: libpq security update


An update for libpq 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-2026:35880: Important: libpq security update



RHSA-2026:35869: Important: compat-openssl11 security update


An update for compat-openssl11 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-2026:35869: Important: compat-openssl11 security update



RHSA-2026:35870: Important: kpatch-patch-6_12_0-211_16_1 security update


An update for kpatch-patch-6_12_0-211_16_1 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-2026:35870: Important: kpatch-patch-6_12_0-211_16_1 security update



RHSA-2026:35839: Important: libreoffice security update


An update for libreoffice 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-2026:35839: Important: libreoffice security update



RHSA-2026:35833: Important: container-tools:rhel8 security update


An update for the container-tools:rhel8 module 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-2026:35833: Important: container-tools:rhel8 security update



RHSA-2026:28961: Important: OpenShift Container Platform 4.15.66 packages and security update


Red Hat OpenShift Container Platform release 4.15.66 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 4.15.

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-2026:28961: Important: OpenShift Container Platform 4.15.66 packages and security update



RHSA-2026:28962: Critical: OpenShift Container Platform 4.15.66 bug fix and security update


Red Hat OpenShift Container Platform release 4.15.66 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 4.15.

Red Hat Product Security has rated this update as having a security impact of Critical. 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-2026:28962: Critical: OpenShift Container Platform 4.15.66 bug fix and security update



RHSA-2026:35997: Important: plexus-utils security update


An update for plexus-utils 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-2026:35997: Important: plexus-utils security update



RHSA-2026:35996: Important: maven:3.8 security update


An update for the maven:3.8 module 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-2026:35996: Important: maven:3.8 security update



RHSA-2026:35991: Important: plexus-utils security update


An update for plexus-utils 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-2026:35991: Important: plexus-utils security update



RHSA-2026:35895: Important: ruby security update


An update for ruby 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-2026:35895: Important: ruby security update



RHSA-2026:36049: Important: kernel-rt security, bug fix, and enhancement update


An update for kernel-rt 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-2026:36049: Important: kernel-rt security, bug fix, and enhancement update



RHSA-2026:36018: Important: kernel security, bug fix, and enhancement update


An update for kernel 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-2026:36018: Important: kernel security, bug fix, and enhancement update



RHSA-2026:36012: Important: maven:3.9 security update


An update for the maven:3.9 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 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-2026:36012: Important: maven:3.9 security update



RHSA-2026:35992: Important: plexus-utils security update


An update for plexus-utils 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-2026:35992: Important: plexus-utils security update



RHSA-2026:35990: Important: plexus-utils security update


An update for plexus-utils 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-2026:35990: Important: plexus-utils security update



RHSA-2026:35892: Important: nodejs:22 security, bug fix, and enhancement update


An update for the nodejs:22 module 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-2026:35892: Important: nodejs:22 security, bug fix, and enhancement update



RHSA-2026:35891: Important: nodejs:24 security, bug fix, and enhancement update


An update for the nodejs:24 module 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-2026:35891: Important: nodejs:24 security, bug fix, and enhancement update



RHSA-2026:35904: Important: kernel-rt security update


An update for kernel-rt 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-2026:35904: Important: kernel-rt security update



RHSA-2026:35896: Important: 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 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-2026:35896: Important: kernel security update



RHSA-2026:35894: Important: kernel security update


An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 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-2026:35894: Important: kernel security update