Apache HTTP Server 2.4.65 and earlier with Server Side Includes (SSI) enabled and mod_cgid (but not mod_cgi) passes the shell-escaped query string to #exec cmd="..." directives.
This issue affects Apache HTTP Server before 2.4.66.
Users are recommended to upgrade to version 2.4.66, which fixes the issue.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade httpd-coreUpgrade mod_ldapUpgrade httpd-manualUpgrade mod_mdUpgrade mod_http2Upgrade httpd-toolsUpgrade mod_proxy_htmlUpgrade mod_sessionUpgrade httpdUpgrade mod_luaUpgrade mod_sslUpgrade httpd-filesystemUpgrade httpd-devel | Dec 23, 2025 | Dec 22, 2025 |
| Alpine Linux | — | Upgrade apache2 | Dec 8, 2025 | Dec 5, 2025 |
| Amazon Linux Ami 2 | — | Upgrade httpd-develUpgrade httpdUpgrade httpd-manualUpgrade httpd-toolsUpgrade mod_sessionUpgrade mod_proxy_htmlUpgrade httpd-debuginfoUpgrade mod_mdUpgrade httpd-filesystemUpgrade mod_ldapUpgrade mod_ssl | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade httpd-coreUpgrade mod_sessionUpgrade mod_lua-debuginfoUpgrade mod_sslUpgrade httpd-develUpgrade httpd-core-debuginfoUpgrade httpdUpgrade httpd-toolsUpgrade httpd-debugsourceUpgrade mod_ldap-debuginfoUpgrade httpd-manualUpgrade mod_proxy_htmlUpgrade mod_proxy_html-debuginfoUpgrade httpd-debuginfoUpgrade mod_ssl-debuginfoUpgrade httpd-tools-debuginfoUpgrade httpd-filesystemUpgrade mod_ldapUpgrade mod_session-debuginfoUpgrade mod_lua | Jan 12, 2026 | Dec 5, 2025 |
| Apache Httpd | — | Upgrade to the latest version of Apache HTTPD | Dec 8, 2025 | Dec 5, 2025 |
| Apple Osx Apache | — | Upgrade macOS to the latest version | Mar 27, 2026 | Mar 24, 2026 |
| Debian | — | Upgrade apache2 | Jan 12, 2026 | Jan 12, 2026 |
| Freebsd | — | Upgrade apache24 | Dec 10, 2025 | Dec 4, 2025 |
| Gentoo Linux | — | Upgrade www-servers/apache. | Aug 16, 2026 | Aug 13, 2026 |
| Huawei Euleros 2_0_sp10 | — | Upgrade httpd-toolsUpgrade httpdUpgrade mod_sslUpgrade httpd-filesystem | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp11 | — | Upgrade httpd-toolsUpgrade httpdUpgrade httpd-filesystemUpgrade mod_ssl | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp12 | — | Upgrade httpd-filesystemUpgrade httpd-toolsUpgrade httpdUpgrade mod_ssl | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade httpd-toolsUpgrade httpdUpgrade httpd-filesystemUpgrade mod_ssl | Mar 10, 2026 | Mar 10, 2026 |
| Ibm Http_server | — | Apply IBM HTTP Server version 8.5.5.29 or laterApply IBM HTTP Server Interim Fix PH68462Apply IBM HTTP Server version 9.0.5.27 or later | Mar 25, 2026 | Dec 15, 2025 |
| Oracle Httpserver | — | Apply patch 39073998 to Oracle HTTP Server 12.2.1.4.0.Apply patch 39086822 to Oracle HTTP Server 14.1.2.0.0. | Sep 30, 2026 | Dec 5, 2025 |
| Oracle_linux | — | Upgrade httpd-filesystemUpgrade mod_sessionUpgrade httpd-coreUpgrade httpd-manualUpgrade mod_ldapUpgrade mod_luaUpgrade mod_http2Upgrade httpdUpgrade mod_sslUpgrade mod_proxy_htmlUpgrade httpd-toolsUpgrade httpd-develUpgrade mod_md | Dec 24, 2025 | Dec 5, 2025 |
| Redhat_linux | — | Upgrade mod_http2-debugsourceUpgrade httpdUpgrade httpd-debugsourceUpgrade httpd-tools-debuginfoUpgrade mod_http2-debuginfoUpgrade mod_luaUpgrade httpd-manualUpgrade httpd-coreUpgrade mod_lua-debuginfoUpgrade mod_md-debuginfoUpgrade httpd-toolsUpgrade httpd-debuginfoUpgrade httpd-develUpgrade mod_http2Upgrade mod_proxy_htmlUpgrade mod_proxy_html-debuginfoUpgrade mod_sslUpgrade httpd-filesystemUpgrade mod_mdUpgrade mod_ldapUpgrade httpd-core-debuginfoUpgrade mod_ldap-debuginfoUpgrade mod_ssl-debuginfoUpgrade mod_session-debuginfoUpgrade mod_md-debugsourceUpgrade mod_session | Dec 23, 2025 | Dec 5, 2025 |
| Rocky_linux | — | Upgrade mod_mdUpgrade mod_proxy_htmlUpgrade httpdUpgrade httpd-develUpgrade mod_ldap-debuginfoUpgrade mod_ssl-debuginfoUpgrade httpd-debuginfoUpgrade mod_sslUpgrade mod_http2-debuginfoUpgrade httpd-toolsUpgrade mod_md-debugsourceUpgrade mod_http2-debugsourceUpgrade mod_lua-debuginfoUpgrade mod_luaUpgrade mod_http2Upgrade httpd-coreUpgrade mod_session-debuginfoUpgrade mod_proxy_html-debuginfoUpgrade httpd-tools-debuginfoUpgrade mod_sessionUpgrade httpd-debugsourceUpgrade httpd-core-debuginfoUpgrade mod_md-debuginfoUpgrade mod_ldap | Feb 5, 2026 | Dec 24, 2025 |
| Suse | — | Upgrade apache2-manualUpgrade apache2-eventUpgrade apache2-develUpgrade apache2-tls13-workerUpgrade apache2-docUpgrade apache2-utilsUpgrade apache2-tls13-utilsUpgrade apache2-tls13-preforkUpgrade apache2-tls13-develUpgrade apache2-preforkUpgrade apache2-tls13-docUpgrade apache2-tls13-example-pagesUpgrade apache2-example-pagesUpgrade apache2-tls13Upgrade apache2Upgrade apache2-worker | Apr 15, 2026 | Jan 27, 2026 |
| Ubuntu | — | Upgrade apache2 (Ubuntu Pro)Upgrade apache2 | Jan 20, 2026 | Dec 5, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Feb 9, 2026 | Dec 5, 2025 |
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