First cPanel, Now CloudLinux: A Critical Week for Server Security ( what a mess ! )

After cPanel now it’s time for CloudLinux security patch.

Full info :

https://blog.cloudlinux.com/cve-2026-31431-copy-fail-mitigation-and-patches

If you are using CL9 and CL10 install the latest kernel patch using almalinux as almalinux kernel is directly being used by cloudlinux :

For CL10:

# 1. Enable the AlmaLinux 10 testing repo

dnf install -y https://repo.almalinux.org/almalinux/10/extras/x86_64/os/Packages/almalinux-release-testing-10-1.el10.x86_64.rpm

# 2. Update the kernel

dnf update kernel

# 3. Reboot

reboot

# 4. Verify — expected kernel-6.12.0-124.52.2.el10_1 or later

uname -r

# 5. Disable the testing repo

dnf config-manager --disable almalinux-testing

For CL9 : same flow as CL10 , just replace the URL in step 1:

dnf install -y https://repo.almalinux.org/almalinux/9/extras/x86_64/os/Packages/almalinux-release-testing-9-1.el9.noarch.rpm

Patch for cloudlinux’s kernel for CL8 will be released soon by cloudlinux.

CL7 is not effected

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