In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption.
Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade httpd-develUpgrade httpd-toolsUpgrade httpd-coreUpgrade mod_luaUpgrade mod_mdUpgrade httpdUpgrade mod_proxy_htmlUpgrade mod_ldapUpgrade mod_sessionUpgrade httpd-manualUpgrade mod_http2Upgrade httpd-filesystemUpgrade mod_ssl | Sep 5, 2025 | Sep 3, 2025 |
| Alpine Linux | — | Upgrade apache2 | Aug 8, 2025 | Jul 10, 2025 |
| Amazon Linux Ami 2 | — | Upgrade httpd-develUpgrade httpd-toolsUpgrade httpdUpgrade httpd-manualUpgrade mod_sessionUpgrade mod_ldapUpgrade httpd-filesystemUpgrade mod_sslUpgrade httpd-debuginfoUpgrade mod_proxy_htmlUpgrade mod_md | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade mod_luaUpgrade mod_sslUpgrade mod_lua-debuginfoUpgrade httpdUpgrade httpd-debuginfoUpgrade httpd-toolsUpgrade httpd-tools-debuginfoUpgrade httpd-develUpgrade httpd-manualUpgrade httpd-coreUpgrade httpd-debugsourceUpgrade mod_ssl-debuginfoUpgrade mod_ldap-debuginfoUpgrade mod_ldapUpgrade httpd-filesystemUpgrade mod_proxy_html-debuginfoUpgrade mod_session-debuginfoUpgrade mod_proxy_htmlUpgrade httpd-core-debuginfoUpgrade mod_session | Aug 5, 2025 | Jul 14, 2025 |
| Apache Httpd | — | Upgrade to the latest version of Apache HTTPD | Jul 18, 2025 | Jul 10, 2025 |
| Debian | — | Upgrade apache2 | Jul 14, 2025 | Jul 10, 2025 |
| Freebsd | — | Upgrade apache24 | Jul 13, 2025 | Jul 11, 2025 |
| Gentoo Linux | — | Upgrade www-servers/apache. | Aug 16, 2026 | Aug 13, 2026 |
| Huawei Euleros 2_0_sp10 | — | Upgrade httpd-toolsUpgrade mod_sslUpgrade httpd-filesystemUpgrade httpd | Sep 15, 2025 | Sep 9, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade httpd-filesystemUpgrade httpd-toolsUpgrade mod_sslUpgrade httpd | Oct 14, 2025 | Sep 9, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade httpd-toolsUpgrade mod_sslUpgrade httpdUpgrade httpd-filesystem | Sep 15, 2025 | Sep 9, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade mod_sslUpgrade httpd-toolsUpgrade httpdUpgrade httpd-filesystem | Oct 24, 2025 | Sep 9, 2025 |
| Oracle Httpserver | — | Apply patch 38853418 to Oracle HTTP Server 14.1.2.0.0. | Sep 30, 2026 | Jul 10, 2025 |
| Oracle_linux | — | Upgrade httpd-toolsUpgrade mod_sessionUpgrade httpdUpgrade httpd-coreUpgrade httpd-develUpgrade mod_sslUpgrade httpd-manualUpgrade mod_mdUpgrade mod_proxy_htmlUpgrade mod_luaUpgrade mod_http2Upgrade httpd-filesystemUpgrade mod_ldap | Sep 3, 2025 | Jul 14, 2025 |
| Redhat_linux | — | Upgrade mod_mdUpgrade mod_ldap-debuginfoUpgrade mod_sslUpgrade httpd-debugsourceUpgrade httpd-core-debuginfoUpgrade mod_http2-debugsourceUpgrade httpd-toolsUpgrade httpd-manualUpgrade httpd-coreUpgrade mod_lua-debuginfoUpgrade httpdUpgrade mod_sessionUpgrade mod_md-debuginfoUpgrade httpd-develUpgrade mod_proxy_html-debuginfoUpgrade mod_proxy_htmlUpgrade httpd-filesystemUpgrade httpd-debuginfoUpgrade mod_http2Upgrade mod_session-debuginfoUpgrade httpd-tools-debuginfoUpgrade mod_luaUpgrade mod_md-debugsourceUpgrade mod_ssl-debuginfoUpgrade mod_ldapUpgrade mod_http2-debuginfo | Jul 15, 2025 | Jul 10, 2025 |
| Rocky_linux | — | Upgrade httpd-debuginfoUpgrade mod_ldap-debuginfoUpgrade httpd-develUpgrade httpdUpgrade httpd-toolsUpgrade mod_mdUpgrade httpd-core-debuginfoUpgrade mod_http2-debuginfoUpgrade mod_proxy_htmlUpgrade mod_md-debugsourceUpgrade mod_ssl-debuginfoUpgrade mod_luaUpgrade httpd-coreUpgrade mod_proxy_html-debuginfoUpgrade mod_ldapUpgrade mod_sslUpgrade mod_http2Upgrade mod_http2-debugsourceUpgrade httpd-debugsourceUpgrade mod_lua-debuginfoUpgrade mod_session-debuginfoUpgrade httpd-tools-debuginfoUpgrade mod_sessionUpgrade mod_md-debuginfo | Feb 5, 2026 | Sep 8, 2025 |
| Suse | — | Upgrade apache2-docUpgrade apache2-eventUpgrade apache2-tls13-preforkUpgrade apache2-preforkUpgrade apache2Upgrade apache2-tls13-develUpgrade apache2-tls13Upgrade apache2-tls13-utilsUpgrade apache2-utilsUpgrade apache2-tls13-example-pagesUpgrade apache2-tls13-workerUpgrade apache2-tls13-docUpgrade apache2-example-pagesUpgrade apache2-workerUpgrade apache2-develUpgrade apache2-manual | Dec 5, 2025 | Sep 4, 2025 |
| Ubuntu | — | Upgrade apache2 (Ubuntu Pro)Upgrade apache2 | Jul 17, 2025 | Jul 10, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 11, 2025 | Jul 10, 2025 |
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