CVE-2026-23918

High

Description

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.

SeverityHigh

CVSS8.8

Exploit probability—

Product

Apache Http Server

PublishedMay 4, 2026

First seenMay 4, 2026

Weakness typeCWE-415CWE-415

How to fix

Vendor advisories

httpd.apache.org/security/vulnerabilities_24.html
access.redhat.com/errata/RHSA-2026:13938

Affected products

Product	Affected versions	Fixed in
apache http_server	2.4.66	—

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