CVE-2026-33006
Fixed in a distro release EPSS <1%CVSS 4.8
A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue.
Products: Apache Software Foundation Apache HTTP Server
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux:9 | httpd | 2.4.62-13.el9_8.5 |
| AlmaLinux:9 | httpd-core | 2.4.62-13.el9_8.5 |
| AlmaLinux:9 | httpd-devel | 2.4.62-13.el9_8.5 |
| AlmaLinux:9 | httpd-filesystem | 2.4.62-13.el9_8.5 |
| AlmaLinux:9 | httpd-manual | 2.4.62-13.el9_8.5 |
| AlmaLinux:9 | httpd-tools | 2.4.62-13.el9_8.5 |
| AlmaLinux:9 | mod_ldap | 2.4.62-13.el9_8.5 |
| AlmaLinux:9 | mod_lua | 2.4.62-13.el9_8.5 |
| AlmaLinux:9 | mod_proxy_html | 1:2.4.62-13.el9_8.5 |
| AlmaLinux:9 | mod_session | 2.4.62-13.el9_8.5 |
| AlmaLinux:9 | mod_ssl | 1:2.4.62-13.el9_8.5 |
| Alpine:v3.20 | apache2 | 2.4.67-r0 |
| Alpine:v3.21 | apache2 | 2.4.67-r0 |
| Alpine:v3.22 | apache2 | 2.4.67-r0 |
| Alpine:v3.23 | apache2 | 2.4.67-r0 |
| Alpine:v3.24 | 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 | httpd | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | httpd-core | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | httpd-core-debuginfo | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | httpd-debuginfo | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | httpd-debugsource | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | httpd-devel | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | httpd-filesystem | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | httpd-manual | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | httpd-tools | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | httpd-tools-debuginfo | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | mod_ldap | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | mod_ldap-debuginfo | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | mod_lua | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | mod_lua-debuginfo | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | mod_proxy_html | 1:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | mod_proxy_html-debuginfo | 1:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | mod_session | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | mod_session-debuginfo | 0:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | mod_ssl | 1:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:10.2 | mod_ssl-debuginfo | 1:2.4.63-13.el10_2.4 |
| Red Hat:enterprise_linux:9 | httpd | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | httpd-core | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | httpd-core-debuginfo | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | httpd-debuginfo | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | httpd-debugsource | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | httpd-devel | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | httpd-filesystem | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | httpd-manual | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | httpd-tools | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | httpd-tools-debuginfo | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | mod_ldap | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | mod_ldap-debuginfo | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | mod_lua | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | mod_lua-debuginfo | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | mod_proxy_html | 1:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | mod_proxy_html-debuginfo | 1:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | mod_session | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | mod_session-debuginfo | 0:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | mod_ssl | 1:2.4.62-13.el9_8.5 |
| Red Hat:enterprise_linux:9 | mod_ssl-debuginfo | 1:2.4.62-13.el9_8.5 |
| Red Hat:hummingbird:1 | httpd | 0:2.4.67-1.hum1 |
| Red Hat:hummingbird:1 | httpd-core | 0:2.4.67-1.hum1 |
| Red Hat:hummingbird:1 | httpd-devel | 0:2.4.67-1.hum1 |
| Red Hat:hummingbird:1 | httpd-filesystem | 0:2.4.67-1.hum1 |
| Red Hat:hummingbird:1 | httpd-manual | 0:2.4.67-1.hum1 |
| Red Hat:hummingbird:1 | httpd-tools | 0:2.4.67-1.hum1 |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-httpd | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-httpd-debuginfo | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-httpd-devel | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-httpd-manual | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-httpd-selinux | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-httpd-tools | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-httpd-tools-debuginfo | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_http2 | 0:2.0.29-14.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_http2-debuginfo | 0:2.0.29-14.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_jk | 0:1.2.50-18.redhat_1.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_jk-ap24 | 0:1.2.50-18.redhat_1.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_jk-ap24-debuginfo | 0:1.2.50-18.redhat_1.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_ldap | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_ldap-debuginfo | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_md | 1:2.4.28-20.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_md-debuginfo | 1:2.4.28-20.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_proxy_cluster | 0:1.3.22-13.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_proxy_cluster-debuginfo | 0:1.3.22-13.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_proxy_html | 1:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_proxy_html-debuginfo | 1:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_security | 0:2.9.6-20.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_security-debuginfo | 0:2.9.6-20.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_session | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_session-debuginfo | 0:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_ssl | 1:2.4.62-17.el8jbcs |
| Red Hat:jboss_core_services:1 | jbcs-httpd24-mod_ssl-debuginfo | 1:2.4.62-17.el8jbcs |
| Rocky Linux:9 | httpd | 0:2.4.62-13.el9_8.5 |
| 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 |
| Ubuntu:Pro:14.04:LTS | apache2 | 2.4.7-1ubuntu4.22+esm15 |
| Ubuntu:Pro:16.04:LTS | apache2 | 2.4.18-2ubuntu3.17+esm20 |
| Ubuntu:Pro:18.04:LTS | apache2 | 2.4.29-1ubuntu4.27+esm11 |
| Ubuntu:Pro:20.04:LTS | apache2 | 2.4.41-4ubuntu3.23+esm6 |
| 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 |