A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-httpdalma-upgrade-httpd-develalma-upgrade-httpd-filesystemalma-upgrade-httpd-manualalma-upgrade-httpd-toolsalma-upgrade-mod_http2alma-upgrade-mod_ldapalma-upgrade-mod_mdalma-upgrade-mod_proxy_htmlalma-upgrade-mod_sessionalma-upgrade-mod_ssl | May 13, 2022 | Aug 16, 2021 | |
| Alpine Linux | alpine-linux-upgrade-apache2 | Aug 22, 2024 | Aug 16, 2021 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-httpdamazon-linux-ami-2-upgrade-httpd-debuginfoamazon-linux-ami-2-upgrade-httpd-develamazon-linux-ami-2-upgrade-httpd-filesystemamazon-linux-ami-2-upgrade-httpd-manualamazon-linux-ami-2-upgrade-httpd-toolsamazon-linux-ami-2-upgrade-mod_ldapamazon-linux-ami-2-upgrade-mod_mdamazon-linux-ami-2-upgrade-mod_proxy_htmlamazon-linux-ami-2-upgrade-mod_sessionamazon-linux-ami-2-upgrade-mod_ssl | Oct 18, 2021 | Aug 16, 2021 | |
| Amazon_linux | — | amazon-linux-upgrade-httpd24 | Oct 16, 2021 | Aug 16, 2021 |
| Apache Httpd | apache-httpd-upgrade-latest | Dec 22, 2021 | Aug 16, 2021 | |
| Centos_linux | — | centos-upgrade-httpdcentos-upgrade-httpd-debuginfocentos-upgrade-httpd-debugsourcecentos-upgrade-httpd-develcentos-upgrade-httpd-filesystemcentos-upgrade-httpd-manualcentos-upgrade-httpd-toolscentos-upgrade-httpd-tools-debuginfocentos-upgrade-mod_http2centos-upgrade-mod_http2-debuginfocentos-upgrade-mod_http2-debugsourcecentos-upgrade-mod_ldapcentos-upgrade-mod_ldap-debuginfocentos-upgrade-mod_mdcentos-upgrade-mod_md-debuginfocentos-upgrade-mod_md-debugsourcecentos-upgrade-mod_proxy_htmlcentos-upgrade-mod_proxy_html-debuginfocentos-upgrade-mod_sessioncentos-upgrade-mod_session-debuginfocentos-upgrade-mod_sslcentos-upgrade-mod_ssl-debuginfo | May 13, 2022 | Aug 16, 2021 |
| Check Point Gaia | check-point-gaia-upgrade | Feb 25, 2026 | Oct 27, 2021 | |
| Cisco Telepresence Expressway | cisco-telepresence-expressway-upgrade-latest | Sep 30, 2024 | Nov 24, 2021 | |
| Debian | debian-upgrade-apache2 | Mar 6, 2023 | Aug 16, 2021 | |
| Freebsd | freebsd-upgrade-package-apache24 | Nov 4, 2022 | Sep 17, 2021 | |
| Gentoo Linux | gentoo-linux-upgrade-app-admin-apache-toolsgentoo-linux-upgrade-www-servers-apache | Aug 16, 2022 | Aug 16, 2021 | |
| Oracle Solaris | oracle-solaris-11-4-upgrade-web-server-apache-24-2-4-51-11-4-38-0-1-101-6oracle-solaris-11-4-upgrade-web-server-apache-24-module-apache-dbd-2-4-51-11-4-38-0-1-101-6oracle-solaris-11-4-upgrade-web-server-apache-24-module-apache-gss-2-4-51-11-4-38-0-1-101-6oracle-solaris-11-4-upgrade-web-server-apache-24-module-apache-ldap-2-4-51-11-4-38-0-1-101-6oracle-solaris-11-4-upgrade-web-server-apache-24-module-apache-lua-2-4-51-11-4-38-0-1-101-6oracle-solaris-11-4-upgrade-web-server-apache-24-module-apache-ssl-2-4-51-11-4-38-0-1-101-6oracle-solaris-11-4-upgrade-web-server-apache-24-module-apache-ssl-fips-140-2-4-51-11-4-38-0-1-101-6 | Nov 17, 2021 | Aug 16, 2021 | |
| Oracle_linux | — | oracle-linux-upgrade-httpdoracle-linux-upgrade-httpd-develoracle-linux-upgrade-httpd-filesystemoracle-linux-upgrade-httpd-manualoracle-linux-upgrade-httpd-toolsoracle-linux-upgrade-mod-http2oracle-linux-upgrade-mod-ldaporacle-linux-upgrade-mod-mdoracle-linux-upgrade-mod-proxy-htmloracle-linux-upgrade-mod-sessionoracle-linux-upgrade-mod-ssl | Apr 14, 2022 | Aug 5, 2021 |
| Redhat_linux | redhat-upgrade-httpdredhat-upgrade-httpd-debuginforedhat-upgrade-httpd-debugsourceredhat-upgrade-httpd-develredhat-upgrade-httpd-filesystemredhat-upgrade-httpd-manualredhat-upgrade-httpd-toolsredhat-upgrade-httpd-tools-debuginforedhat-upgrade-mod_http2redhat-upgrade-mod_http2-debuginforedhat-upgrade-mod_http2-debugsourceredhat-upgrade-mod_ldapredhat-upgrade-mod_ldap-debuginforedhat-upgrade-mod_mdredhat-upgrade-mod_md-debuginforedhat-upgrade-mod_md-debugsourceredhat-upgrade-mod_proxy_htmlredhat-upgrade-mod_proxy_html-debuginforedhat-upgrade-mod_sessionredhat-upgrade-mod_session-debuginforedhat-upgrade-mod_sslredhat-upgrade-mod_ssl-debuginfo | May 13, 2022 | Aug 16, 2021 | |
| Rocky_linux | rocky-upgrade-httpdrocky-upgrade-httpd-debuginforocky-upgrade-httpd-debugsourcerocky-upgrade-httpd-develrocky-upgrade-httpd-toolsrocky-upgrade-httpd-tools-debuginforocky-upgrade-mod_http2rocky-upgrade-mod_http2-debuginforocky-upgrade-mod_http2-debugsourcerocky-upgrade-mod_ldaprocky-upgrade-mod_ldap-debuginforocky-upgrade-mod_mdrocky-upgrade-mod_md-debuginforocky-upgrade-mod_md-debugsourcerocky-upgrade-mod_proxy_htmlrocky-upgrade-mod_proxy_html-debuginforocky-upgrade-mod_sessionrocky-upgrade-mod_session-debuginforocky-upgrade-mod_sslrocky-upgrade-mod_ssl-debuginfo | Mar 5, 2024 | Aug 16, 2021 | |
| Suse | — | suse-upgrade-apache2suse-upgrade-apache2-develsuse-upgrade-apache2-docsuse-upgrade-apache2-eventsuse-upgrade-apache2-example-pagessuse-upgrade-apache2-preforksuse-upgrade-apache2-utilssuse-upgrade-apache2-worker | Sep 3, 2021 | Aug 16, 2021 |
| Ubuntu | ubuntu-upgrade-apache2ubuntu-upgrade-apache2-bin | Sep 28, 2021 | Aug 16, 2021 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jan 20, 2025 | Aug 16, 2021 |
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