Red Hat Security Advisory: mod_md security update
A moderate severity vulnerability (CVE-2026-29168) affects the mod_md module in Red Hat Enterprise Linux. The mod_md module automates certificate provisioning using the ACME protocol for managed domains and virtual hosts. The vulnerability involves unrestricted OCSP responses that can lead to resource exhaustion. Red Hat has released security updates to address this issue in multiple versions of Red Hat Enterprise Linux 9 and 10. No known exploits are reported in the wild.
AI Analysis
Technical Summary
The mod_md module in Red Hat Enterprise Linux manages domain properties for virtual hosts and automates certificate provisioning via the ACME protocol. A security flaw (CVE-2026-29168) exists where unrestricted OCSP responses can lead to resource exhaustion, potentially impacting system stability. Red Hat has issued security advisories RHSA-2026:30844 and RHSA-2026:30845 providing updated packages that fix this issue for RHEL 9 and 10 respectively.
Potential Impact
Unrestricted OCSP responses can cause resource exhaustion in the mod_md module, which may degrade system performance or availability. The vulnerability does not have known exploits in the wild and is rated moderate in severity by Red Hat.
Mitigation Recommendations
Red Hat has released official security updates that address this vulnerability. Users should apply the provided updates for Red Hat Enterprise Linux 9 and 10 as detailed in Red Hat advisories RHSA-2026:30844 and RHSA-2026:30845. Refer to https://access.redhat.com/articles/11258 for update instructions. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: mod_md security update
Description
A moderate severity vulnerability (CVE-2026-29168) affects the mod_md module in Red Hat Enterprise Linux. The mod_md module automates certificate provisioning using the ACME protocol for managed domains and virtual hosts. The vulnerability involves unrestricted OCSP responses that can lead to resource exhaustion. Red Hat has released security updates to address this issue in multiple versions of Red Hat Enterprise Linux 9 and 10. No known exploits are reported in the wild.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The mod_md module in Red Hat Enterprise Linux manages domain properties for virtual hosts and automates certificate provisioning via the ACME protocol. A security flaw (CVE-2026-29168) exists where unrestricted OCSP responses can lead to resource exhaustion, potentially impacting system stability. Red Hat has issued security advisories RHSA-2026:30844 and RHSA-2026:30845 providing updated packages that fix this issue for RHEL 9 and 10 respectively.
Potential Impact
Unrestricted OCSP responses can cause resource exhaustion in the mod_md module, which may degrade system performance or availability. The vulnerability does not have known exploits in the wild and is rated moderate in severity by Red Hat.
Mitigation Recommendations
Red Hat has released official security updates that address this vulnerability. Users should apply the provided updates for Red Hat Enterprise Linux 9 and 10 as detailed in Red Hat advisories RHSA-2026:30844 and RHSA-2026:30845. Refer to https://access.redhat.com/articles/11258 for update instructions. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:30844
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a42ed6527e9c79719937dc4
Added to database: 06/29/2026, 22:10:45 UTC
Last enriched: 08/10/2026, 20:03:30 UTC
Last updated: 08/13/2026, 00:41:11 UTC
Views: 93
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