CVE-2026-44631: httpd: Apache HTTP Server: Denial of Service via crafted regular expressions

Severity: Critical

CVSS Score: 9.8

Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.