Security Advisory: cPanel / CSF Plugin

Multiple vulnerabilities were found in the ConfigServer Firewall (CSF) plugin. Exploiting the vulnerabilities could allow an attacker to gain root access.

Critical 2026-08-06

cPanel CSF AlmaLinux 8 AlmaLinux 9 CentOS 7 CloudLinux 7

Affected Versions

16.20-1 and earlier

Patched Version

16.30-1

Default Update CMD

yum update -y

Fix Commands

CentOS 7 / CloudLinux 7

yum clean all
/scripts/update-packages

AlmaLinux / CloudLinux 8/9/10

dnf clean metadata
/scripts/update-packages

Multiple vulnerabilities were found in the ConfigServer Firewall (CSF) plugin. Exploiting the vulnerabilities could allow an attacker to gain root access.

References

Vendor Advisory

Security Advisories

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