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PatchSiren cyber security CVE debrief

CVE-2026-45447 cPanel CVE debrief

A security and maintenance update for EasyApache 4 (version 25.66) was released, addressing five CVEs, including four High-severity issues (CVE-2026-45447, CVE-2026-34180, CVE-2026-7383, CVE-2026-9076). The update patches ea-openssl11 to 1.1.1w-8 (for CentOS 7 only) with TuxCare/ELS backports and updates the Passenger ecosystem to v6.1.5. This release aims to enhance security and stability for users of cPanel/WHM.

Vendor
cPanel
Product
cPanel/WHM
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-09-11
Advisory published
2026-06-09
Advisory updated
2026-09-11

Who should care

System administrators and security teams managing cPanel/WHM environments, particularly those using EasyApache 4, should prioritize this update to mitigate potential security risks associated with the addressed CVEs.

Technical summary

The EasyApache 4 25.66 update specifically addresses CVE-2026-45447, a High-severity vulnerability, along with four other CVEs. It updates ea-openssl11 to 1.1.1w-8 for CentOS 7 and upgrades the Passenger ecosystem components (ea-passenger-src, ea-apache24-mod-passenger, ea-nginx-passenger, ea-ruby27-passenger) to version 6.1.5. These changes are designed to enhance the security posture of cPanel/WHM installations.

Defensive priority

High

Recommended defensive actions

  • Apply the EasyApache 4 25.66 update to patch CVE-2026-45447 and other addressed CVEs.
  • Ensure all components of the Passenger ecosystem are updated to version 6.1.5.
  • Review and apply TuxCare/ELS backports for ea-openssl11 (CentOS 7 only).
  • Monitor cPanel/WHM environments for any signs of exploitation attempts related to these CVEs.
  • Regularly review and update EasyApache 4 configurations to align with the latest security recommendations.
  • Consider implementing additional security measures, such as enhanced monitoring and intrusion detection systems.

Evidence notes

The information provided is based on the official cPanel changelog and CVE records. The update directly addresses multiple High-severity vulnerabilities, emphasizing the importance of prompt application.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-45447 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-45447

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-45447 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-45447

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Vendor advisory source

    Unverified legacy reference

    URL: https://docs.cpanel.net/release-notes/release-notes/

    cpanel_changelog_rss

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.