Prior to Apache HTTP Server 2.4.55, a malicious backend can cause the response headers to be truncated early, resulting in some headers being incorporated into the response body. If the later headers have any security purpose, they will not be interpreted by the client.
CVSS Details
- CVSS 3.1 Base Score: 5.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade mod_sslUpgrade mod_luaUpgrade httpd-toolsUpgrade httpd-develUpgrade httpdUpgrade httpd-manualUpgrade httpd-coreUpgrade mod_ldapUpgrade mod_mdUpgrade mod_http2Upgrade httpd-filesystemUpgrade mod_proxy_htmlUpgrade mod_session | Feb 22, 2023 | Jan 17, 2023 |
| Alpine Linux | — | Upgrade apache2 | Aug 22, 2024 | Jan 17, 2023 |
| Amazon Linux Ami 2 | — | Upgrade mod_ldapUpgrade mod_sessionUpgrade httpd-manualUpgrade mod_sslUpgrade httpd-filesystemUpgrade httpd-debuginfoUpgrade httpd-toolsUpgrade httpdUpgrade httpd-develUpgrade mod_proxy_htmlUpgrade mod_md | Feb 23, 2023 | Jan 17, 2023 |
| Amazon_linux | — | Upgrade httpd24 | Mar 23, 2023 | Jan 17, 2023 |
| Amazon_linux_2023 | — | Upgrade mod_sslUpgrade httpd-debugsourceUpgrade httpdUpgrade mod_ldap-debuginfoUpgrade mod_proxy_htmlUpgrade mod_sessionUpgrade httpd-manualUpgrade httpd-coreUpgrade httpd-develUpgrade httpd-debuginfoUpgrade mod_session-debuginfoUpgrade mod_luaUpgrade httpd-tools-debuginfoUpgrade httpd-core-debuginfoUpgrade mod_lua-debuginfoUpgrade mod_ssl-debuginfoUpgrade mod_proxy_html-debuginfoUpgrade mod_ldapUpgrade httpd-filesystemUpgrade httpd-tools | Feb 17, 2025 | Jan 17, 2023 |
| Apache Httpd | — | Upgrade to the latest version of Apache HTTPD | Nov 29, 2023 | Jan 17, 2023 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jan 17, 2023 |
| Centos_linux | — | Upgrade mod_luaUpgrade httpdUpgrade httpd-core-debuginfoUpgrade httpd-debugsourceUpgrade httpd-toolsUpgrade mod_md-debuginfoUpgrade mod_proxy_html-debuginfoUpgrade mod_sessionUpgrade httpd-tools-debuginfoUpgrade mod_ldapUpgrade mod_sslUpgrade httpd-manualUpgrade mod_http2-debugsourceUpgrade mod_lua-debuginfoUpgrade httpd-coreUpgrade mod_ssl-debuginfoUpgrade mod_mdUpgrade mod_ldap-debuginfoUpgrade mod_session-debuginfoUpgrade httpd-develUpgrade httpd-debuginfoUpgrade mod_proxy_htmlUpgrade mod_http2Upgrade mod_md-debugsourceUpgrade httpd-filesystemUpgrade mod_http2-debuginfo | Feb 22, 2023 | Jan 17, 2023 |
| Debian | — | Upgrade apache2 | Mar 6, 2023 | Jan 17, 2023 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Feb 22, 2023 |
| Freebsd | — | Upgrade apache24 | Jan 19, 2023 | Jan 17, 2023 |
| Gentoo Linux | — | Upgrade www-servers/apache. | Sep 11, 2023 | Jan 17, 2023 |
| Huawei Euleros 2_0_sp10 | — | Upgrade httpd-filesystemUpgrade httpd-toolsUpgrade mod_sslUpgrade httpd | Mar 20, 2023 | Jan 17, 2023 |
| Huawei Euleros 2_0_sp11 | — | Upgrade httpd-filesystemUpgrade httpdUpgrade httpd-toolsUpgrade mod_ssl | May 8, 2023 | Jan 17, 2023 |
| Huawei Euleros 2_0_sp8 | — | Upgrade httpd-filesystemUpgrade mod_sessionUpgrade httpd-manualUpgrade httpd-toolsUpgrade httpd-develUpgrade httpdUpgrade mod_ssl | Apr 13, 2023 | Jan 17, 2023 |
| Huawei Euleros 2_0_sp9 | — | Upgrade httpdUpgrade httpd-toolsUpgrade mod_sslUpgrade httpd-filesystem | May 10, 2023 | Jan 17, 2023 |
| Ibm Http_server | — | Apply IBM HTTP Server version 8.5.5.24 or laterApply IBM HTTP Server version 9.0.5.15 or laterApply IBM HTTP Server Interim Fix PH51982 | Nov 20, 2025 | Feb 27, 2023 |
| Oracle_linux | — | Upgrade mod_luaUpgrade mod_http2Upgrade mod_sessionUpgrade mod_proxy_htmlUpgrade mod_ldapUpgrade httpd-filesystemUpgrade httpd-develUpgrade httpdUpgrade mod_mdUpgrade httpd-coreUpgrade mod_sslUpgrade httpd-toolsUpgrade httpd-manual | Feb 23, 2023 | Jan 17, 2023 |
| Redhat_linux | — | Upgrade mod_http2Upgrade mod_ssl-debuginfoUpgrade mod_mdUpgrade mod_sessionUpgrade httpd-debuginfoUpgrade mod_proxy_html-debuginfoUpgrade httpd-filesystemUpgrade mod_md-debugsourceUpgrade mod_luaUpgrade mod_proxy_htmlUpgrade mod_ldap-debuginfoUpgrade mod_session-debuginfoUpgrade mod_ldapUpgrade mod_lua-debuginfoUpgrade httpd-manualUpgrade httpd-core-debuginfoUpgrade mod_sslNo solution existsUpgrade httpd-coreUpgrade mod_http2-debugsourceUpgrade httpd-tools-debuginfoUpgrade httpd-toolsUpgrade httpd-debugsourceUpgrade httpd-develUpgrade mod_md-debuginfoUpgrade httpdUpgrade mod_http2-debuginfo | Feb 22, 2023 | Jan 17, 2023 |
| Rocky_linux | — | Upgrade mod_md-debugsourceUpgrade mod_http2Upgrade mod_ssl-debuginfoUpgrade httpd-toolsUpgrade mod_luaUpgrade httpd-tools-debuginfoUpgrade mod_lua-debuginfoUpgrade mod_session-debuginfoUpgrade mod_proxy_html-debuginfoUpgrade httpdUpgrade mod_sslUpgrade mod_mdUpgrade mod_http2-debugsourceUpgrade httpd-core-debuginfoUpgrade httpd-coreUpgrade mod_sessionUpgrade mod_ldap-debuginfoUpgrade httpd-debugsourceUpgrade mod_proxy_htmlUpgrade httpd-develUpgrade mod_md-debuginfoUpgrade mod_ldapUpgrade httpd-debuginfoUpgrade mod_http2-debuginfo | Mar 12, 2024 | Jan 17, 2023 |
| Suse | — | Upgrade apache2-workerUpgrade apache2-example-pagesUpgrade apache2-preforkUpgrade apache2Upgrade apache2-docUpgrade apache2-utilsUpgrade apache2-develUpgrade apache2-event | Jan 30, 2023 | Jan 17, 2023 |
| Ubuntu | — | Upgrade apache2Upgrade apache2 (Ubuntu Pro) | Mar 22, 2023 | Jan 17, 2023 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jan 17, 2023 |
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