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PatchSiren cyber security CVE debrief

CVE-2026-6735 cPanel CVE debrief

cPanel’s EasyApache 4 25.58 security release, published on 2026-05-10, includes a fix for CVE-2026-6735 alongside several other CVEs. The vendor notice says updated packages were released for ea-php82, ea-php83, ea-php84, and ea-php85. The supplied advisory does not provide technical root-cause details for CVE-2026-6735, so the safest takeaway is operational: ensure the EasyApache 4 PHP packages are updated promptly across affected servers.

Vendor
cPanel
Product
cPanel/WHM
CVSS
HIGH 7.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-10
Original CVE updated
2026-07-24
Advisory published
2026-05-10
Advisory updated
2026-07-24

Who should care

cPanel/WHM administrators, hosting providers, and Linux server operators who use EasyApache 4 PHP packages (ea-php82 through ea-php85) should prioritize this update, especially in environments exposed to untrusted web content or multi-tenant hosting.

Technical summary

The vendor advisory identifies CVE-2026-6735 as one of multiple security issues corrected in EasyApache 4 25.58. The affected package families are ea-php82, ea-php83, ea-php84, and ea-php85. No vulnerability class, attack vector, or exploitation conditions are included in the supplied source, so assessment should rely on the vendor-provided package update and any additional details from the official CVE/NVD records.

Defensive priority

High. This is a vendor-disclosed security update for core PHP package streams used by cPanel/WHM deployments. Because the advisory is package-based and applies to multiple versions, patching should be treated as a routine priority update rather than deferred maintenance.

Recommended defensive actions

  • Upgrade EasyApache 4 to the 25.58 package set or later on all affected cPanel/WHM systems.
  • Verify that ea-php82, ea-php83, ea-php84, and ea-php85 packages are at the vendor-fixed versions used in your environment.
  • Review hosting or application change windows so the PHP update can be deployed with minimal service disruption.
  • Check for any site- or tenant-specific PHP compatibility issues after updating, especially in shared hosting environments.
  • Use the official CVE and NVD records for any additional impact or CVSS context before setting internal remediation deadlines.

Evidence notes

The supplied vendor source is a cPanel EasyApache 4 release note for 25.58 stating that updated packages address CVE-2026-6735 and that the release applies to ea-php82, ea-php83, ea-php84, and ea-php85. No further technical explanation is included in the supplied corpus. Published date used for timing is 2026-05-10T05:16:11.213Z.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-6735 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-6735

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

  • CVE-2026-6735 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-6735

    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.