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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade httpdUpgrade mod_proxy_htmlUpgrade httpd-develUpgrade httpd-toolsUpgrade mod_sessionUpgrade httpd-filesystemUpgrade httpd-coreUpgrade mod_sslUpgrade httpd-manualUpgrade mod_ldapUpgrade mod_lua | Oct 25, 2026 | Oct 22, 2026 |
| Alpine Linux | — | Upgrade apache2 | Oct 5, 2026 | Oct 1, 2026 |
| Amazon Linux Ami 2 | — | Upgrade httpd-debuginfoUpgrade httpd-develUpgrade mod_sslUpgrade httpdUpgrade httpd-toolsUpgrade httpd-manualUpgrade mod_http2Upgrade httpd-filesystemUpgrade mod_sessionUpgrade mod_ldapUpgrade mod_mdUpgrade mod_proxy_html | Oct 19, 2026 | Oct 19, 2026 |
| Amazon_linux_2023 | — | Upgrade mod_proxy_htmlUpgrade mod_session-debuginfoUpgrade httpd-tools-debuginfoUpgrade mod_sessionUpgrade httpd-filesystemUpgrade mod_ssl-debuginfoUpgrade mod_luaUpgrade mod_proxy_html-debuginfoUpgrade mod_http2Upgrade httpd-debuginfoUpgrade mod_ldapUpgrade httpd-toolsUpgrade mod_sslUpgrade httpd-manualUpgrade httpd-develUpgrade mod_lua-debuginfoUpgrade mod_http2-debuginfoUpgrade httpdUpgrade mod_ldap-debuginfoUpgrade httpd-coreUpgrade httpd-debugsourceUpgrade httpd-core-debuginfo | Oct 13, 2026 | Oct 1, 2026 |
| Apache Httpd | — | Upgrade to the latest version of Apache HTTPD | Oct 2, 2026 | Oct 1, 2026 |
| Debian | — | Upgrade apache2 | Oct 20, 2026 | Oct 1, 2026 |
| Freebsd | — | Upgrade apache24 | Oct 5, 2026 | Oct 1, 2026 |
| Oracle_linux | — | Upgrade httpd-filesystemUpgrade httpd-coreUpgrade httpd-manualUpgrade mod_sslUpgrade mod_ldapUpgrade mod_sessionUpgrade httpd-toolsUpgrade mod_luaUpgrade httpdUpgrade mod_proxy_htmlUpgrade httpd-devel | Oct 28, 2026 | Oct 1, 2026 |
| Redhat_linux | — | Upgrade mod_luaUpgrade httpd-debugsourceUpgrade httpdUpgrade mod_sslUpgrade httpd-debuginfoNo solution existsUpgrade httpd-tools-debuginfoUpgrade httpd-develUpgrade mod_sessionUpgrade mod_lua-debuginfoUpgrade mod_proxy_htmlUpgrade httpd-coreUpgrade mod_proxy_html-debuginfoUpgrade httpd-manualUpgrade httpd-toolsUpgrade mod_ldapUpgrade mod_ldap-debuginfoUpgrade mod_ssl-debuginfoUpgrade httpd-core-debuginfoUpgrade mod_session-debuginfoUpgrade httpd-filesystem | Oct 5, 2026 | Oct 1, 2026 |
| Rocky_linux | — | Upgrade httpd-develUpgrade httpdUpgrade mod_luaUpgrade mod_sessionUpgrade httpd-debuginfoUpgrade mod_sslUpgrade mod_session-debuginfoUpgrade httpd-tools-debuginfoUpgrade mod_lua-debuginfoUpgrade httpd-debugsourceUpgrade httpd-core-debuginfoUpgrade mod_proxy_html-debuginfoUpgrade httpd-coreUpgrade httpd-toolsUpgrade mod_proxy_htmlUpgrade mod_ldapUpgrade mod_ssl-debuginfoUpgrade mod_ldap-debuginfo | Oct 26, 2026 | Oct 23, 2026 |
| Ubuntu | — | Upgrade apache2-mpm-worker (Ubuntu Pro)Upgrade libapache2-mod-mdUpgrade apache2-suexec-pristine (Ubuntu Pro)Upgrade apache2 (Ubuntu Pro)Upgrade apache2-dev (Ubuntu Pro)Upgrade apache2-suexec-customUpgrade apache2-binUpgrade apache2-suexec-pristineUpgrade libapache2-mod-proxy-uwsgiUpgrade apache2-devUpgrade libapache2-mod-proxy-uwsgi (Ubuntu Pro)Upgrade apache2-bin (Ubuntu Pro)Upgrade libapache2-mod-proxy-html (Ubuntu Pro)Upgrade apache2.2-bin (Ubuntu Pro)Upgrade apache2-ssl-devUpgrade libapache2-mod-macro (Ubuntu Pro)Upgrade apache2-ssl-dev (Ubuntu Pro)Upgrade apache2-mpm-itk (Ubuntu Pro)Upgrade apache2-suexec-custom (Ubuntu Pro)Upgrade apache2Upgrade apache2-utils (Ubuntu Pro)Upgrade apache2-mpm-prefork (Ubuntu Pro)Upgrade libapache2-mod-md (Ubuntu Pro)Upgrade apache2-utilsUpgrade apache2-suexec (Ubuntu Pro)Upgrade apache2-mpm-event (Ubuntu Pro) | Oct 15, 2026 | Oct 14, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 22, 2026 | Oct 1, 2026 |
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