Red Hat published a batch of RHSA-2026 security advisories affecting Red Hat Enterprise Linux systems spanning versions 7 Extended Lifecycle Support to version 10, addressing vulnerabilities across multiple packages including kernels, tigervnc, sssd, and libreoffice. Red Hat Product Security assigned an Important impact level to the majority of these advisories, covering patches for kernel, kernel-rt, tigervnc, libreswan, freerdp, and dovecot, while rating a single kernel-rt update for RHEL 7 as Moderate based on CVSS scores available via CVE references. The advisories target diverse maintenance streams such as Advanced Mission Critical Update Support, Extended Update Support Long-Life Add-On, SAP Solutions, and Telecommunications Update Service for RHEL 8, alongside standard releases for RHEL 9 and 10 including updates for go-fdo-client and kpatch-patch.

RHSA-2026:46461: Moderate: kernel-rt security update
RHSA-2026:46460: Important: tigervnc security update
RHSA-2026:46456: Important: tigervnc security update
RHSA-2026:46482: Important: sssd security update
RHSA-2026:46473: Important: tigervnc security update
RHSA-2026:46467: Important: evince security update
RHSA-2026:46398: Important: libreswan security update
RHSA-2026:46392: Important: tigervnc security update
RHSA-2026:46388: Important: freerdp security update
RHSA-2026:46385: Important: tigervnc security update
RHSA-2026:46386: Important: libreoffice security update
RHSA-2026:46384: Important: freerdp security update
RHSA-2026:46394: Important: go-fdo-client security update
RHSA-2026:47011: Important: kernel security update
RHSA-2026:47010: Important: kernel-rt security update
RHSA-2026:46990: Important: sssd security, bug fix, and enhancement update
RHSA-2026:46986: Important: libreswan security update
RHSA-2026:46951: Important: kpatch-patch security update
RHSA-2026:46532: Important: dovecot security update

RHSA-2026:46461: Moderate: kernel-rt security update

An update for kernel-rt 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-2026:46461: Moderate: kernel-rt security update

RHSA-2026:46460: Important: tigervnc security update

An update for tigervnc 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-2026:46460: Important: tigervnc security update

RHSA-2026:46456: Important: tigervnc security update

An update for tigervnc 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-2026:46456: Important: tigervnc security update

RHSA-2026:46482: Important: sssd security update

An update for sssd 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-2026:46482: Important: sssd security update

RHSA-2026:46473: Important: tigervnc security update

An update for tigervnc 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-2026:46473: Important: tigervnc security update

RHSA-2026:46467: Important: evince security update

An update for evince 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-2026:46467: Important: evince security update

RHSA-2026:46398: Important: libreswan security update

An update for libreswan 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-2026:46398: Important: libreswan security update

RHSA-2026:46392: Important: tigervnc security update

An update for tigervnc 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-2026:46392: Important: tigervnc security update

RHSA-2026:46388: 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-2026:46388: Important: freerdp security update

RHSA-2026:46385: Important: tigervnc security update

An update for tigervnc 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-2026:46385: Important: tigervnc security update

RHSA-2026:46386: Important: libreoffice security update

An update for libreoffice 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-2026:46386: Important: libreoffice security update

RHSA-2026:46384: Important: freerdp security update

An update for freerdp 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-2026:46384: Important: freerdp security update

RHSA-2026:46394: Important: go-fdo-client security update

An update for go-fdo-client 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-2026:46394: Important: go-fdo-client security update

RHSA-2026:47011: Important: kernel security update

An update for kernel 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-2026:47011: Important: kernel security update

RHSA-2026:47010: Important: kernel-rt security 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-2026:47010: Important: kernel-rt security update

RHSA-2026:46990: Important: sssd security, bug fix, and enhancement update

An update for sssd 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-2026:46990: Important: sssd security, bug fix, and enhancement update

RHSA-2026:46986: Important: libreswan security update

An update for libreswan is now available for Fast Datapath 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-2026:46986: Important: libreswan security update

RHSA-2026:46951: Important: kpatch-patch 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-2026:46951: Important: kpatch-patch security update

RHSA-2026:46532: Important: dovecot security update

An update for dovecot 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-2026:46532: Important: dovecot security update