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.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade apache2 | Oct 5, 2026 | Oct 1, 2026 |
| Apache Httpd | — | Upgrade to the latest version of Apache HTTPD | Oct 2, 2026 | Oct 1, 2026 |
| Freebsd | — | Upgrade apache24 | Oct 5, 2026 | Oct 1, 2026 |
| Redhat_linux | — | No solution exists | Oct 5, 2026 | Oct 1, 2026 |
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