RHSA-2026:57642: Moderate: mod_md security update
Moderate: modmd security update
Other sources
This module manages common properties of domains for one or more virtual hosts. Specifically it can use the ACME protocol to automate certificate provisioning. Certificates will be configured for managed domains and their virtual hosts automatically, including at renewal.Security Fix(es): httpd: modmd: unrestricted OCSP response leads to resource exhaustion (CVE-2026-29168) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
httpd:mod_mdto a version that resolves this vulnerability.Patch CVE-2026-29168
Event History
Frequently Asked Questions
Which Red Hat Enterprise Linux offerings are covered by this advisory?
The advisory covers x86_64, ARM 64, Power little endian, and IBM z Systems offerings, including selected Extended Life Cycle, AUS, and Update Services for SAP Solutions channels.