Vulnerability Details CVE-2026-63292
Stack-based buffer overflow in mod_vhost_alias in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows a remote client to cause a denial of service or potentially execute arbitrary code via an HTTP request with a Host header exceeding 8192 bytes when VirtualDocumentRoot uses a hostname format specifier and LimitRequestFieldSize is raised above the default.
Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 45.8%
CVSS Severity
CVSS v3 Score 7.5