CVE-2026-23918

HIGH

Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.

CVSS v3.1 Score

8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 5/4/2026Modified: 10/26/2026

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References (6)

https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisoryhttp://www.openwall.com/lists/oss-security/2026/05/04/19Mailing ListThird Party Advisoryhttps://access.redhat.com/errata/RHSA-2026:13938https://access.redhat.com/security/cve/CVE-2026-23918https://bugzilla.redhat.com/show_bug.cgi?id=2465304https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23918.json