CVE-2026-29168
Apache HTTP Server: mod_md unrestricted OCSP response
CVE-2026-29168 is fixed in 34 products on 1 platform, first by apache2 2.4.66-2ubuntu2.1, released May 4, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0063
50th percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| apache2 · Debian 12.15 (bookworm) | 2.4.67-1~deb12u2 | DEBIAN-CVE-2026-29168 | May 15, 2026 |
| apache2 · Debian 13.5 (trixie) | 2.4.67-1~deb13u2 | DEBIAN-CVE-2026-29168 | May 15, 2026 |
| apache2 · Debian 14 | 2.4.67-1 | DEBIAN-CVE-2026-29168 | May 15, 2026 |
| apache2 · Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.20 | apache2 2.4.52-1ubuntu4.20 | May 15, 2026 |
| apache2 · Ubuntu 24.04.5 LTS (noble) | 2.4.58-1ubuntu8.12 | apache2 2.4.58-1ubuntu8.12 | May 15, 2026 |
| apache2 · Ubuntu 25.10 (questing) | 2.4.64-1ubuntu3.4 | apache2 2.4.64-1ubuntu3.4 | May 15, 2026 |
| apache2 · Ubuntu 26.04.1 LTS (resolute) | 2.4.66-2ubuntu2.1 | apache2 2.4.66-2ubuntu2.1 | May 4, 2026 |
| apache2 · opensuse-leap 16.0 | 2.4.66-160000.2.1 | OPENSUSE-SU-2026:21115-1 | Jun 20, 2026 |
| apache2 · sles 16.0 | 2.4.66-160000.2.1 | SUSE-SU-2026:22209-1 | Jun 20, 2026 |
| apache2-bin · Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.20 | apache2-bin 2.4.52-1ubuntu4.20 | May 15, 2026 |
| apache2-bin · Ubuntu 24.04.5 LTS (noble) | 2.4.58-1ubuntu8.12 | apache2-bin 2.4.58-1ubuntu8.12 | May 15, 2026 |
| apache2-bin · Ubuntu 25.10 (questing) | 2.4.64-1ubuntu3.4 | apache2-bin 2.4.64-1ubuntu3.4 | May 15, 2026 |
| apache2-bin · Ubuntu 26.04.1 LTS (resolute) | 2.4.66-2ubuntu2.1 | apache2-bin 2.4.66-2ubuntu2.1 | May 4, 2026 |
| apache2-data · Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.20 | apache2-data 2.4.52-1ubuntu4.20 | May 15, 2026 |
| apache2-data · Ubuntu 24.04.5 LTS (noble) | 2.4.58-1ubuntu8.12 | apache2-data 2.4.58-1ubuntu8.12 | May 15, 2026 |
| apache2-data · Ubuntu 25.10 (questing) | 2.4.64-1ubuntu3.4 | apache2-data 2.4.64-1ubuntu3.4 | May 15, 2026 |
| apache2-data · Ubuntu 26.04.1 LTS (resolute) | 2.4.66-2ubuntu2.1 | apache2-data 2.4.66-2ubuntu2.1 | May 4, 2026 |
| apache2-devel · opensuse-leap 16.0 | 2.4.66-160000.2.1 | OPENSUSE-SU-2026:21115-1 | Jun 20, 2026 |
| apache2-devel · sles 16.0 | 2.4.66-160000.2.1 | SUSE-SU-2026:22209-1 | Jun 20, 2026 |
| apache2-event · opensuse-leap 16.0 | 2.4.66-160000.2.1 | OPENSUSE-SU-2026:21115-1 | Jun 20, 2026 |
| apache2-event · sles 16.0 | 2.4.66-160000.2.1 | SUSE-SU-2026:22209-1 | Jun 20, 2026 |
| apache2-manual · opensuse-leap 16.0 | 2.4.66-160000.2.1 | OPENSUSE-SU-2026:21115-1 | Jun 20, 2026 |
| apache2-manual · sles 16.0 | 2.4.66-160000.2.1 | SUSE-SU-2026:22209-1 | Jun 20, 2026 |
| apache2-prefork · opensuse-leap 16.0 | 2.4.66-160000.2.1 | OPENSUSE-SU-2026:21115-1 | Jun 20, 2026 |
| apache2-prefork · sles 16.0 | 2.4.66-160000.2.1 | SUSE-SU-2026:22209-1 | Jun 20, 2026 |
| apache2-suexec-custom · Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.20 | apache2-suexec-custom 2.4.52-1ubuntu4.20 | May 15, 2026 |
| apache2-suexec-custom · Ubuntu 24.04.5 LTS (noble) | 2.4.58-1ubuntu8.12 | apache2-suexec-custom 2.4.58-1ubuntu8.12 | May 15, 2026 |
| apache2-suexec-custom · Ubuntu 25.10 (questing) | 2.4.64-1ubuntu3.4 | apache2-suexec-custom 2.4.64-1ubuntu3.4 | May 15, 2026 |
| apache2-suexec-custom · Ubuntu 26.04.1 LTS (resolute) | 2.4.66-2ubuntu2.1 | apache2-suexec-custom 2.4.66-2ubuntu2.1 | May 4, 2026 |
| apache2-suexec-pristine · Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.20 | apache2-suexec-pristine 2.4.52-1ubuntu4.20 | May 15, 2026 |
| apache2-suexec-pristine · Ubuntu 24.04.5 LTS (noble) | 2.4.58-1ubuntu8.12 | apache2-suexec-pristine 2.4.58-1ubuntu8.12 | May 15, 2026 |
| apache2-suexec-pristine · Ubuntu 25.10 (questing) | 2.4.64-1ubuntu3.4 | apache2-suexec-pristine 2.4.64-1ubuntu3.4 | May 15, 2026 |
| apache2-suexec-pristine · Ubuntu 26.04.1 LTS (resolute) | 2.4.66-2ubuntu2.1 | apache2-suexec-pristine 2.4.66-2ubuntu2.1 | May 4, 2026 |
| apache2-utils · Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.20 | apache2-utils 2.4.52-1ubuntu4.20 | May 15, 2026 |
| apache2-utils · Ubuntu 24.04.5 LTS (noble) | 2.4.58-1ubuntu8.12 | apache2-utils 2.4.58-1ubuntu8.12 | May 15, 2026 |
| apache2-utils · Ubuntu 25.10 (questing) | 2.4.64-1ubuntu3.4 | apache2-utils 2.4.64-1ubuntu3.4 | May 15, 2026 |
| apache2-utils · Ubuntu 26.04.1 LTS (resolute) | 2.4.66-2ubuntu2.1 | apache2-utils 2.4.66-2ubuntu2.1 | May 4, 2026 |
| apache2-utils · opensuse-leap 16.0 | 2.4.66-160000.2.1 | OPENSUSE-SU-2026:21115-1 | Jun 20, 2026 |
| apache2-utils · sles 16.0 | 2.4.66-160000.2.1 | SUSE-SU-2026:22209-1 | Jun 20, 2026 |
| apache2-worker · opensuse-leap 16.0 | 2.4.66-160000.2.1 | OPENSUSE-SU-2026:21115-1 | Jun 20, 2026 |
| apache2-worker · sles 16.0 | 2.4.66-160000.2.1 | SUSE-SU-2026:22209-1 | Jun 20, 2026 |
| httpd · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| httpd-core · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| httpd-core-debuginfo · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| httpd-debuginfo · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| httpd-debugsource · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| httpd-devel · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| httpd-filesystem · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| httpd-manual · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| httpd-tools · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| httpd-tools-debuginfo · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| libapache2-mod-md · Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.20 | libapache2-mod-md 2.4.52-1ubuntu4.20 | May 15, 2026 |
| libapache2-mod-md · Ubuntu 24.04.5 LTS (noble) | 2.4.58-1ubuntu8.12 | libapache2-mod-md 2.4.58-1ubuntu8.12 | May 15, 2026 |
| libapache2-mod-proxy-uwsgi · Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.20 | libapache2-mod-proxy-uwsgi 2.4.52-1ubuntu4.20 | May 15, 2026 |
| libapache2-mod-proxy-uwsgi · Ubuntu 24.04.5 LTS (noble) | 2.4.58-1ubuntu8.12 | libapache2-mod-proxy-uwsgi 2.4.58-1ubuntu8.12 | May 15, 2026 |
| mod_ldap · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| mod_ldap-debuginfo · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| mod_lua · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| mod_lua-debuginfo · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| mod_md · RHEL 10 | 2.4.26-3.el10_0.2 | RHSA-2026:52393 | May 5, 2026 |
| mod_md · RHEL 9 | 1:2.4.26-2.el9_8.1 | RHSA-2026:30844 | Jun 29, 2026 |
| mod_md · almalinux 10 | 1:2.4.26-5.el10_2.1 | ALSA-2026:30845 | Jun 29, 2026 |
| mod_md · almalinux 9 | 1:2.4.26-2.el9_8.1 | ALSA-2026:30844 | Jun 29, 2026 |
| mod_md · ol 10 | 1:2.4.26-5.el10_2.1 | ELSA-2026-30845 | Jul 16, 2026 |
| mod_md · ol 9 | 1:2.4.26-2.el9_8.1 | ELSA-2026-30844 | Jun 29, 2026 |
| mod_md · rocky 10 | 1:2.4.26-5.el10_2.1 | RLSA-2026:30845 | Jul 5, 2026 |
| mod_md · rocky 9 | 1:2.4.26-2.el9_8.1 | RLSA-2026:30844 | Jul 1, 2026 |
| mod_proxy_html · amzn 2023 | 1:2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| mod_proxy_html-debuginfo · amzn 2023 | 1:2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| mod_session · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| mod_session-debuginfo · amzn 2023 | 2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| mod_ssl · amzn 2023 | 1:2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
| mod_ssl-debuginfo · amzn 2023 | 1:2.4.67-1.amzn2023.0.1 | ALAS2023-2026-1720 | May 25, 2026 |
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