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Red Hat recently published multiple security advisories that address vulnerabilities across OpenShift Container Platform and several essential RHEL packages. System administrators should apply these fixes immediately since they target critical components like krb5, freerdp, podman, and git-lfs on versions eight through ten of the operating system. The advisory ratings range from Moderate to Important, with full severity details accessible through linked CVE references.

RHSA-2026:16155: Important: OpenShift Container Platform 4.21.15 bug fix and security update
RHSA-2026:16799: Important: krb5 security update
RHSA-2026:16814: Moderate: freerdp security update
RHSA-2026:16777: Moderate: freerdp security update
RHSA-2026:16171: Important: OpenShift Container Platform 4.16.62 bug fix and security update
RHSA-2026:16875: Important: git-lfs security update
RHSA-2026:16865: Moderate: freerdp security update
RHSA-2026:16866: Moderate: freerdp security update
RHSA-2026:14773: Important: OpenShift Container Platform 4.15.64 bug fix and security update
RHSA-2026:15087: Important: OpenShift Container Platform 4.14.65 bug fix and security update
RHSA-2026:17040: Important: podman security update
RHSA-2026:17083: Important: fence-agents security update
RHSA-2026:17075: Important: yggdrasil security update
RHSA-2026:17287: Important: podman security update
RHSA-2026:16157: Important: OpenShift Container Platform 4.20.22 bug fix and security update
RHSA-2026:17084: Important: gvisor-tap-vsock security update




RHSA-2026:16155: Important: OpenShift Container Platform 4.21.15 bug fix and security update


Red Hat OpenShift Container Platform release 4.21.15 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 4.21.

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-2026:16155: Important: OpenShift Container Platform 4.21.15 bug fix and security update



RHSA-2026:16799: Important: krb5 security update


An update for krb5 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-2026:16799: Important: krb5 security update



RHSA-2026:16814: Moderate: freerdp security update


An update for freerdp 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-2026:16814: Moderate: freerdp security update



RHSA-2026:16777: Moderate: 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 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-2026:16777: Moderate: freerdp security update



RHSA-2026:16171: Important: OpenShift Container Platform 4.16.62 bug fix and security update


Red Hat OpenShift Container Platform release 4.16.62 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 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-2026:16171: Important: OpenShift Container Platform 4.16.62 bug fix and security update



RHSA-2026:16875: Important: git-lfs security update


An update for git-lfs 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-2026:16875: Important: git-lfs security update



RHSA-2026:16865: Moderate: freerdp security update


An update for freerdp 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-2026:16865: Moderate: freerdp security update



RHSA-2026:16866: Moderate: freerdp security update


An update for freerdp 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-2026:16866: Moderate: freerdp security update



RHSA-2026:14773: Important: OpenShift Container Platform 4.15.64 bug fix and security update


Red Hat OpenShift Container Platform release 4.15.64 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-2026:14773: Important: OpenShift Container Platform 4.15.64 bug fix and security update



RHSA-2026:15087: Important: OpenShift Container Platform 4.14.65 bug fix and security update


Red Hat OpenShift Container Platform release 4.14.65 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 4.14.

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-2026:15087: Important: OpenShift Container Platform 4.14.65 bug fix and security update



RHSA-2026:17040: Important: podman security update


An update for podman 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-2026:17040: Important: podman security update



RHSA-2026:17083: Important: fence-agents security update


An update for fence-agents 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-2026:17083: Important: fence-agents security update



RHSA-2026:17075: Important: yggdrasil security update


An update for yggdrasil 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-2026:17075: Important: yggdrasil security update



RHSA-2026:17287: Important: podman security update


An update for podman 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-2026:17287: Important: podman security update



RHSA-2026:16157: Important: OpenShift Container Platform 4.20.22 bug fix and security update


Red Hat OpenShift Container Platform release 4.20.22 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 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-2026:16157: Important: OpenShift Container Platform 4.20.22 bug fix and security update



RHSA-2026:17084: Important: gvisor-tap-vsock security update


An update for gvisor-tap-vsock 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-2026:17084: Important: gvisor-tap-vsock security update