CVE-2026-29168
CVE-2026-29168 · Apache HTTP Server: mod_md unrestricted OCSP response
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 7.3 · High · EPSS 1.1% · Fix available
- Published
- Updated
Affected products and versions
apache httpd
- Versions
- ≥ 2.4.30, ≤ 2.4.66: Affected (semver)
No fix published
apache2 Debian:12
- Versions
- 2.4.57-2
- 2.4.57-3
- 2.4.58-1
- 2.4.59-1
- 2.4.59-1~deb10u1
- 2.4.59-1~deb11u1
- 2.4.59-1~deb12u1
- 2.4.59-2
- 2.4.60-1
- 2.4.61-1
- 2.4.61-1~deb11u1
- 2.4.61-1~deb12u1
- 2.4.62-1
- 2.4.62-1~deb11u1
- 2.4.62-1~deb11u2
- 2.4.62-1~deb12u1
- 2.4.62-1~deb12u2
- 2.4.62-2
- 2.4.62-3
- 2.4.62-4
- 2.4.62-5
- 2.4.62-6
- 2.4.63-1
- 2.4.64-1
- 2.4.65-1
- 2.4.65-1~deb11u1
- 2.4.65-1~deb12u1
- 2.4.65-2
- 2.4.65-3
- 2.4.66-1
- 2.4.66-1~deb11u1
- 2.4.66-1~deb12u1
- 2.4.66-1~deb12u2
- 2.4.66-1~deb13u1
- 2.4.66-1~deb13u2
- 2.4.66-2
- 2.4.66-3
- 2.4.66-4
- 2.4.66-5
- 2.4.66-6
- 2.4.66-7
- 2.4.66-8
- 2.4.67-1~deb11u1
- 2.4.67-1~deb11u2
- 2.4.67-1~deb11u3
- 2.4.67-1~deb12u1
- Affected ranges
- ECOSYSTEM: < 2.4.67-1~deb12u2
Update to 2.4.67-1~deb12u2
apache2 Debian:13
- Versions
- 2.4.65-2
- 2.4.65-3
- 2.4.66-1
- 2.4.66-1~deb11u1
- 2.4.66-1~deb12u1
- 2.4.66-1~deb12u2
- 2.4.66-1~deb13u1
- 2.4.66-1~deb13u2
- 2.4.66-2
- 2.4.66-3
- 2.4.66-4
- 2.4.66-5
- 2.4.66-6
- 2.4.66-7
- 2.4.66-8
- 2.4.67-1~deb11u1
- 2.4.67-1~deb11u2
- 2.4.67-1~deb11u3
- 2.4.67-1~deb12u1
- 2.4.67-1~deb12u2
- 2.4.67-1~deb12u3
- 2.4.67-1~deb13u1
- Affected ranges
- ECOSYSTEM: < 2.4.67-1~deb13u2
Update to 2.4.67-1~deb13u2
apache2 Debian:14
- Versions
- 2.4.65-2
- 2.4.65-3
- 2.4.66-1
- 2.4.66-1~deb11u1
- 2.4.66-1~deb12u1
- 2.4.66-1~deb12u2
- 2.4.66-1~deb13u1
- 2.4.66-1~deb13u2
- 2.4.66-2
- 2.4.66-3
- 2.4.66-4
- 2.4.66-5
- 2.4.66-6
- 2.4.66-7
- 2.4.66-8
- 2.4.67-1~deb11u1
- 2.4.67-1~deb11u2
- 2.4.67-1~deb11u3
- 2.4.67-1~deb12u1
- 2.4.67-1~deb12u2
- 2.4.67-1~deb12u3
- 2.4.67-1~deb13u1
- 2.4.67-1~deb13u2
- 2.4.67-1~deb13u3
- Affected ranges
- ECOSYSTEM: < 2.4.67-1
Update to 2.4.67-1
apache2 Ubuntu:22.04:LTS
- Versions
- 2.4.48-3.1ubuntu3
- 2.4.48-3.1ubuntu4
- 2.4.51-2ubuntu1
- 2.4.52-1ubuntu1
- 2.4.52-1ubuntu2
- 2.4.52-1ubuntu4
- 2.4.52-1ubuntu4.1
- 2.4.52-1ubuntu4.2
- 2.4.52-1ubuntu4.3
- 2.4.52-1ubuntu4.4
- 2.4.52-1ubuntu4.5
- 2.4.52-1ubuntu4.6
- 2.4.52-1ubuntu4.7
- 2.4.52-1ubuntu4.8
- 2.4.52-1ubuntu4.9
- 2.4.52-1ubuntu4.10
- 2.4.52-1ubuntu4.11
- 2.4.52-1ubuntu4.12
- 2.4.52-1ubuntu4.13
- 2.4.52-1ubuntu4.14
- 2.4.52-1ubuntu4.15
- 2.4.52-1ubuntu4.16
- 2.4.52-1ubuntu4.18
- 2.4.52-1ubuntu4.19
- Affected ranges
- ECOSYSTEM: < 2.4.52-1ubuntu4.20
Update to 2.4.52-1ubuntu4.20
apache2 Ubuntu:24.04:LTS
- Versions
- 2.4.57-2ubuntu2
- 2.4.57-2ubuntu3
- 2.4.58-1ubuntu1
- 2.4.58-1ubuntu2
- 2.4.58-1ubuntu6
- 2.4.58-1ubuntu7
- 2.4.58-1ubuntu8
- 2.4.58-1ubuntu8.1
- 2.4.58-1ubuntu8.2
- 2.4.58-1ubuntu8.3
- 2.4.58-1ubuntu8.4
- 2.4.58-1ubuntu8.5
- 2.4.58-1ubuntu8.6
- 2.4.58-1ubuntu8.7
- 2.4.58-1ubuntu8.8
- 2.4.58-1ubuntu8.10
- 2.4.58-1ubuntu8.11
- Affected ranges
- ECOSYSTEM: < 2.4.58-1ubuntu8.12
Update to 2.4.58-1ubuntu8.12
apache2 Ubuntu:25.10
- Versions
- 2.4.63-1ubuntu1
- 2.4.63-1ubuntu3
- 2.4.64-1ubuntu2
- 2.4.64-1ubuntu3
- 2.4.64-1ubuntu3.2
- 2.4.64-1ubuntu3.3
- Affected ranges
- ECOSYSTEM: < 2.4.64-1ubuntu3.4
Update to 2.4.64-1ubuntu3.4
apache2 Ubuntu:26.04:LTS
- Versions
- 2.4.64-1ubuntu3
- 2.4.65-3ubuntu1
- 2.4.66-2ubuntu1
- 2.4.66-2ubuntu2
- Affected ranges
- ECOSYSTEM: < 2.4.66-2ubuntu2.1
Update to 2.4.66-2ubuntu2.1