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PatchSiren cyber security CVE debrief

CVE-2025-26803 cPanel CVE debrief

cPanel’s EasyApache 4 25.7 release includes a security update for Passenger that addresses CVE-2025-26803. The vendor advisory also notes updated packages for Tomcat 10.1, NodeJS 18, and Memcached 1.6. Based on the supplied source corpus, the actionable takeaway is straightforward: operators running cPanel/WHM with EasyApache 4 should verify they have the 25.7 release or later applied so the Passenger fix is in place.

Vendor
cPanel
Product
EasyApache 4
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2025-02-24
Original CVE updated
2025-02-24
Advisory published
Unknown
Advisory updated
Unknown

Who should care

cPanel/WHM administrators, hosting providers, and anyone managing systems that use EasyApache 4 with Passenger enabled or installed.

Technical summary

The only vulnerability-specific detail in the supplied corpus is that Passenger received a security update in EasyApache 4 25.7 to address CVE-2025-26803. The source material does not include the vulnerability class, attack prerequisites, impact scope, or CVSS score. The release note does confirm the affected maintenance stream is EasyApache 4 and that the fix is delivered through the vendor’s package update channel.

Defensive priority

Elevated. The vendor explicitly labels this as a security update, but the supplied corpus does not provide CVSS or impact details. Prioritize routine patch validation and package reconciliation on exposed cPanel/WHM hosts.

Recommended defensive actions

  • Confirm whether EasyApache 4 25.7 or a later release is installed on all cPanel/WHM systems.
  • Review Passenger package versions on managed hosts and apply the vendor update if they lag behind the EasyApache 4 25.7 release.
  • Validate update deployment across staging and production so the security fix is consistently present.
  • Check the EasyApache 4 change log referenced by cPanel for any additional package-level impacts before maintenance windows.
  • Monitor the CVE record and NVD entry for any newly published impact details or scoring updates.

Evidence notes

The vendor advisory at the official cPanel release notes page states: “This release includes updated versions of Tomcat 10.1, NodeJS 18, Memcached 1.6, and a security update for Passenger to address CVE-2025-26803.” The supplied corpus does not include CVSS, exploitability details, or dates for the CVE record, so those are intentionally not inferred.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-26803 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-26803

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

  • CVE-2025-26803 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-26803

    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.