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.
CVSS Details
- CVSS 3.1 Base Score: 9.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade mod_proxy_htmlUpgrade mod_sslUpgrade mod_http2Upgrade mod_sessionUpgrade httpd-manualUpgrade httpd-filesystemUpgrade mod_ldapUpgrade httpd-coreUpgrade httpdUpgrade httpd-develUpgrade httpd-toolsUpgrade mod_luaUpgrade mod_md | Sep 5, 2025 | Sep 3, 2025 |
| Alpine Linux | — | Upgrade apache2 | Aug 8, 2025 | Jul 10, 2025 |
| Amazon Linux Ami 2 | — | Upgrade httpd-manualUpgrade httpdUpgrade httpd-develUpgrade httpd-toolsUpgrade httpd-debuginfoUpgrade mod_proxy_htmlUpgrade mod_sessionUpgrade mod_sslUpgrade httpd-filesystemUpgrade mod_ldapUpgrade mod_md | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade mod_sessionUpgrade mod_proxy_html-debuginfoUpgrade mod_ldapUpgrade httpd-filesystemUpgrade mod_ldap-debuginfoUpgrade mod_session-debuginfoUpgrade httpd-core-debuginfoUpgrade mod_proxy_htmlUpgrade mod_ssl-debuginfoUpgrade httpd-manualUpgrade httpd-debugsourceUpgrade httpd-coreUpgrade mod_luaUpgrade mod_lua-debuginfoUpgrade httpd-develUpgrade httpdUpgrade httpd-toolsUpgrade httpd-debuginfoUpgrade mod_sslUpgrade httpd-tools-debuginfo | 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 |
| 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-toolsUpgrade httpdUpgrade mod_sslUpgrade httpd-filesystem | 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_linux | — | Upgrade mod_ldapUpgrade mod_proxy_htmlUpgrade mod_luaUpgrade mod_mdUpgrade httpd-filesystemUpgrade mod_http2Upgrade mod_sessionUpgrade httpdUpgrade httpd-toolsUpgrade httpd-manualUpgrade httpd-coreUpgrade httpd-develUpgrade mod_ssl | Sep 3, 2025 | Jul 14, 2025 |
| Redhat_linux | — | Upgrade mod_sslUpgrade httpd-core-debuginfoUpgrade mod_http2-debugsourceUpgrade mod_mdUpgrade mod_ldap-debuginfoUpgrade httpd-manualUpgrade httpd-debugsourceUpgrade httpd-toolsUpgrade mod_lua-debuginfoUpgrade httpdUpgrade httpd-coreUpgrade mod_sessionUpgrade httpd-develUpgrade mod_md-debuginfoUpgrade httpd-debuginfoUpgrade httpd-filesystemUpgrade mod_proxy_htmlUpgrade mod_session-debuginfoUpgrade mod_http2-debuginfoUpgrade mod_ldapUpgrade httpd-tools-debuginfoUpgrade mod_http2Upgrade mod_proxy_html-debuginfoUpgrade mod_ssl-debuginfoUpgrade mod_luaUpgrade mod_md-debugsource | Jul 15, 2025 | Jul 10, 2025 |
| Rocky_linux | — | Upgrade httpd-toolsUpgrade httpdUpgrade httpd-core-debuginfoUpgrade mod_mdUpgrade httpd-develUpgrade mod_ssl-debuginfoUpgrade mod_proxy_htmlUpgrade httpd-debuginfoUpgrade mod_md-debugsourceUpgrade mod_http2-debuginfoUpgrade mod_ldap-debuginfoUpgrade mod_md-debuginfoUpgrade mod_sessionUpgrade mod_session-debuginfoUpgrade httpd-coreUpgrade mod_luaUpgrade mod_proxy_html-debuginfoUpgrade mod_ldapUpgrade mod_http2-debugsourceUpgrade mod_http2Upgrade httpd-tools-debuginfoUpgrade httpd-debugsourceUpgrade mod_sslUpgrade mod_lua-debuginfo | Feb 5, 2026 | Sep 8, 2025 |
| Suse | — | Upgrade apache2-manualUpgrade apache2-tls13-workerUpgrade apache2-workerUpgrade apache2-example-pagesUpgrade apache2-tls13-docUpgrade apache2-tls13-example-pagesUpgrade apache2-develUpgrade apache2-tls13-develUpgrade apache2Upgrade apache2-tls13Upgrade apache2-tls13-preforkUpgrade apache2-utilsUpgrade apache2-tls13-utilsUpgrade apache2-eventUpgrade apache2-preforkUpgrade apache2-doc | Dec 5, 2025 | Sep 4, 2025 |
| Ubuntu | — | Upgrade apache2Upgrade apache2 (Ubuntu Pro) | 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 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub