CVE-2026-29168
Fixed in a distro release EPSS <1%CVSS 7.3
Allocation of Resources Without Limits or Throttling vulnerability in Apache HTTP Server's mod_md via OCSP response data. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.
Products: Apache Software Foundation Apache HTTP Server
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | mod_md | 1:2.4.26-5.el10_2.1 |
| AlmaLinux 9 | mod_md | 1:2.4.26-2.el9_8.1 |
| Alpine 3.20 | apache2 | 2.4.67-r0 |
| Alpine 3.21 | apache2 | 2.4.67-r0 |
| Alpine 3.22 | apache2 | 2.4.67-r0 |
| Alpine 3.23 | apache2 | 2.4.67-r0 |
| Alpine 3.24 | apache2 | 2.4.67-r0 |
| Debian 12 | apache2 | 2.4.67-1~deb12u2 |
| Debian 13 | apache2 | 2.4.67-1~deb13u2 |
| Debian 14 | apache2 | 2.4.67-1 |
| Red Hat Enterprise Linux 10.2 | mod_md | 1:2.4.26-5.el10_2.1 |
| Red Hat Enterprise Linux 10.2 | mod_md-debuginfo | 1:2.4.26-5.el10_2.1 |
| Red Hat Enterprise Linux 10.2 | mod_md-debugsource | 1:2.4.26-5.el10_2.1 |
| Red Hat Enterprise Linux 9 | mod_md | 1:2.4.26-2.el9_8.1 |
| Red Hat Enterprise Linux 9 | mod_md-debuginfo | 1:2.4.26-2.el9_8.1 |
| Red Hat Enterprise Linux 9 | mod_md-debugsource | 1:2.4.26-2.el9_8.1 |
| Red Hat Enterprise Linux eus 10.0 | mod_md | 1:2.4.26-3.el10_0.2 |
| Red Hat hummingbird 1 | httpd | 0:2.4.68-6.hum1 |
| Red Hat hummingbird 1 | httpd-core | 0:2.4.68-6.hum1 |
| Red Hat hummingbird 1 | httpd-devel | 0:2.4.68-6.hum1 |
| Red Hat hummingbird 1 | httpd-filesystem | 0:2.4.68-6.hum1 |
| Red Hat hummingbird 1 | httpd-manual | 0:2.4.68-6.hum1 |
| Red Hat hummingbird 1 | httpd-tools | 0:2.4.68-6.hum1 |
| Red Hat hummingbird 1 | mod_ldap | 0:2.4.68-6.hum1 |
| Red Hat hummingbird 1 | mod_lua | 0:2.4.68-6.hum1 |
| Red Hat hummingbird 1 | mod_proxy_html | 0:2.4.68-6.hum1 |
| Red Hat hummingbird 1 | mod_session | 0:2.4.68-6.hum1 |
| Red Hat hummingbird 1 | mod_ssl | 0:2.4.68-6.hum1 |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd | 0:2.4.62-13.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-debuginfo | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-debuginfo | 0:2.4.62-13.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-devel | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-devel | 0:2.4.62-13.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-manual | 0:2.4.62-13.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-manual | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-selinux | 0:2.4.62-13.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-selinux | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-tools | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-tools | 0:2.4.62-13.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-httpd-tools-debuginfo | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_http2 | 0:2.0.29-10.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_http2 | 0:2.0.29-10.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_http2-debuginfo | 0:2.0.29-10.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_http2-debuginfo | 0:2.0.29-10.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_ldap | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_ldap | 0:2.4.62-13.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_ldap-debuginfo | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_md | 1:2.4.28-16.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_md | 1:2.4.28-16.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_md-debuginfo | 1:2.4.28-16.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_md-debuginfo | 1:2.4.28-16.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_proxy_html | 1:2.4.62-13.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_proxy_html | 1:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_proxy_html-debuginfo | 1:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_session | 0:2.4.62-13.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_session | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_session-debuginfo | 0:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_ssl | 1:2.4.62-13.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_ssl | 1:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-mod_ssl-debuginfo | 1:2.4.62-13.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-nghttp2 | 0:1.64.0-3.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-nghttp2 | 0:1.64.0-3.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-nghttp2-debuginfo | 0:1.64.0-3.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-nghttp2-debuginfo | 0:1.64.0-3.el8jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-nghttp2-devel | 0:1.64.0-3.el7jbcs |
| Red Hat jboss core services 1 | jbcs-httpd24-nghttp2-devel | 0:1.64.0-3.el8jbcs |
| Red Hat rhel e4s 9.2 | mod_md | 1:2.4.19-1.el9_2.2 |
| Red Hat rhel e4s 9.4 | mod_md | 1:2.4.19-1.el9_4.2 |
| Red Hat rhel eus 9.6 | mod_md | 1:2.4.26-1.el9_6.2 |
| Rocky Linux 10 | mod_md | 1:2.4.26-5.el10_2.1 |
| Rocky Linux 9 | mod_md | 1:2.4.26-2.el9_8.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | apache2 | 2.4.66-150400.6.57.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | apache2 | 2.4.66-150400.6.57.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | apache2 | 2.4.66-150400.6.57.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | apache2 | 2.4.66-150400.6.57.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | apache2 | 2.4.66-35.78.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | apache2-tls13 | 2.4.66-35.78.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | apache2 | 2.4.66-150400.6.57.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | apache2 | 2.4.66-150400.6.57.1 |
| SUSE Linux Enterprise Server 16.0 | apache2 | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server 16.0 | apache2-devel | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server 16.0 | apache2-event | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server 16.0 | apache2-manual | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server 16.0 | apache2-prefork | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server 16.0 | apache2-utils | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server 16.0 | apache2-worker | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | apache2 | 2.4.66-35.78.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | apache2-tls13 | 2.4.66-35.78.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | apache2 | 2.4.66-150400.6.57.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | apache2 | 2.4.66-150400.6.57.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | apache2 | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | apache2-devel | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | apache2-event | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | apache2-manual | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | apache2-prefork | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | apache2-utils | 2.4.66-160000.2.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | apache2-worker | 2.4.66-160000.2.1 |
| Ubuntu 22.04 LTS | apache2 | 2.4.52-1ubuntu4.20 |
| Ubuntu 24.04 LTS | apache2 | 2.4.58-1ubuntu8.12 |
| Ubuntu 25.10 | apache2 | 2.4.64-1ubuntu3.4 |
| Ubuntu 26.04 LTS | apache2 | 2.4.66-2ubuntu2.1 |
| openSUSE Leap 16.0 | apache2 | 2.4.66-160000.2.1 |
| openSUSE Leap 16.0 | apache2-devel | 2.4.66-160000.2.1 |
| openSUSE Leap 16.0 | apache2-event | 2.4.66-160000.2.1 |
| openSUSE Leap 16.0 | apache2-manual | 2.4.66-160000.2.1 |
| openSUSE Leap 16.0 | apache2-prefork | 2.4.66-160000.2.1 |
| openSUSE Leap 16.0 | apache2-utils | 2.4.66-160000.2.1 |
| openSUSE Leap 16.0 | apache2-worker | 2.4.66-160000.2.1 |
| openSUSE Tumbleweed | apache2 | 2.4.67-1.1 |