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CVE-2026-24072 cPanel CVE debrief

CVE-2026-24072 is a privilege-escalation issue in Apache HTTP Server that cPanel says affects version 2.4.66 and earlier. The vendor summary says local .htaccess authors may be able to read files with the privileges of the httpd user. Apache HTTP Server 2.4.67 is identified as the fixed release.

Vendor
cPanel
Product
cPanel/WHM
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-05
Original CVE updated
2026-05-11
Advisory published
2026-05-05
Advisory updated
2026-05-11

Who should care

Administrators and operators running cPanel/WHM or EasyApache 4 stacks that include Apache HTTP Server, especially environments where users can author .htaccess rules or where hosting boundaries depend on Apache request handling.

Technical summary

According to the vendor advisory, the flaw is an escalation-of-privilege bug in various Apache HTTP Server modules, with the article title identifying mod_rewrite and ap_expr. In affected Apache HTTP Server versions 2.4.66 and earlier, a local .htaccess author may gain the ability to read files as the httpd user. The vendor states that Apache HTTP Server 2.4.67 fixes the issue.

Defensive priority

High for any exposed Apache HTTP Server deployment that permits untrusted or semi-trusted .htaccess authoring. Treat as a priority upgrade because the impact is unauthorized file read with the web server account's privileges.

Recommended defensive actions

  • Upgrade Apache HTTP Server to version 2.4.67 or later as recommended by the vendor.
  • Review which users or tenants can create or modify .htaccess files and restrict that capability where possible.
  • Validate cPanel/WHM or EasyApache 4 package levels after updating to confirm the fixed Apache build is installed.
  • Reassess file and directory permissions for content served by Apache to reduce the impact of server-account file read paths.
  • Monitor vendor advisories and changelogs for any follow-on fixes tied to the same Apache update set.

Evidence notes

Vendor source published on 2026-05-05 and last modified on 2026-05-11 states that Apache HTTP Server 2.4.66 and earlier are affected and that 2.4.67 fixes the issue. The supplied source corpus does not include a CVSS score, exploit details, or independent validation beyond the vendor advisory and linked CVE/NVD records.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-24072 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-24072

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

  • CVE-2026-24072 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-24072

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

Supplemental references

  • Vendor advisory source

    Unverified legacy reference

    URL: https://support.cpanel.net/hc/en-us/articles/40232024538775-Security-CVE-2026-24072-Apache-HTTP-Server-mod-rewrite-elevation-of-privileges-via-ap-expr

    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.