Rocky Linux administrators need to install multiple security patches that target both version eight and nine of the distribution. The advisories cover a wide array of packages ranging from kernel-rt and glibc to web servers like nginx, development tools including .NET versions eight through ten, and email clients such as Thunderbird. Severity levels vary across these releases with ratings spanning from moderate to critical based on how easily attackers could exploit the flaws.

RLSA-2026:21745: Important: kernel-rt security update
RLSA-2026:21706: Important: kernel security update
RLSA-2026:20568: Important: jmc security update
RLSA-2026:21381: Important: thunderbird security update
RLSA-2026:20597: Moderate: glibc security update
RLSA-2026:21296: Important: .NET 9.0 security update
RLSA-2026:21391: Important: httpd security update
RLSA-2026:21468: Important: cockpit security update
RLSA-2026:21378: Important: firefox security update
RLSA-2026:21556: Important: kernel security update
RLSA-2026:19355: Important: fence-agents security update
RLSA-2026:19374: Critical: nginx security update
RLSA-2026:21293: Important: .NET 8.0 security update
RLSA-2026:21297: Important: .NET 10.0 security update
RLSA-2026:19176: Important: python3.14 security update

RLSA-2026:21745: Important: kernel-rt security update

An update is available for kernel-rt.
This update affects Rocky Linux 8.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:21745: Important: kernel-rt security update

RLSA-2026:21706: Important: kernel security update

An update is available for kernel.
This update affects Rocky Linux 8.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:21706: Important: kernel security update

RLSA-2026:20568: Important: jmc security update

An update is available for jmc.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:20568: Important: jmc security update

RLSA-2026:21381: Important: thunderbird security update

An update is available for thunderbird.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:21381: Important: thunderbird security update

RLSA-2026:20597: Moderate: glibc security update

An update is available for glibc.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:20597: Moderate: glibc security update

RLSA-2026:21296: Important: .NET 9.0 security update

An update is available for dotnet9.0.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:21296: Important: .NET 9.0 security update

RLSA-2026:21391: Important: httpd security update

An update is available for httpd.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:21391: Important: httpd security update

RLSA-2026:21468: Important: cockpit security update

An update is available for cockpit.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:21468: Important: cockpit security update

RLSA-2026:21378: Important: firefox security update

An update is available for firefox.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:21378: Important: firefox security update

RLSA-2026:21556: Important: kernel security update

An update is available for kernel.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:21556: Important: kernel security update

RLSA-2026:19355: Important: fence-agents security update

An update is available for fence-agents.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:19355: Important: fence-agents security update

RLSA-2026:19374: Critical: nginx security update

An update is available for nginx.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:19374: Critical: nginx security update

RLSA-2026:21293: Important: .NET 8.0 security update

An update is available for dotnet8.0.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:21293: Important: .NET 8.0 security update

RLSA-2026:21297: Important: .NET 10.0 security update

An update is available for dotnet10.0.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:21297: Important: .NET 10.0 security update

RLSA-2026:19176: Important: python3.14 security update

An update is available for python3.14.
This update affects Rocky Linux 9.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list

RLSA-2026:19176: Important: python3.14 security update