Red Hat Security Advisory: mod_md security update
A vulnerability in the mod_md module of Red Hat Enterprise Linux allows unrestricted OCSP responses, which can lead to resource exhaustion. This module automates certificate provisioning using the ACME protocol for managed domains and their virtual hosts. The issue is rated as having moderate security impact by Red Hat Product Security. Updates addressing this vulnerability are available for affected versions of Red Hat Enterprise Linux 9 and 10.
AI Analysis
Technical Summary
The mod_md module in Red Hat Enterprise Linux, responsible for managing domain properties and automating certificate provisioning via the ACME protocol, contains a vulnerability (CVE-2026-29168) where unrestricted OCSP responses can cause resource exhaustion. This flaw could impact the availability of services relying on mod_md. Red Hat has issued security updates to fix this issue in specific versions of their Enterprise Linux distributions.
Potential Impact
The vulnerability can lead to resource exhaustion on systems running affected versions of mod_md, potentially degrading service availability. There is no indication of exploitation in the wild. The impact is rated as moderate by Red Hat.
Mitigation Recommendations
Red Hat has released official security updates addressing this vulnerability. Users should apply the provided patches as detailed in Red Hat Advisory RHSA-2026:30844. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: mod_md security update
Description
A vulnerability in the mod_md module of Red Hat Enterprise Linux allows unrestricted OCSP responses, which can lead to resource exhaustion. This module automates certificate provisioning using the ACME protocol for managed domains and their virtual hosts. The issue is rated as having moderate security impact by Red Hat Product Security. Updates addressing this vulnerability are available for affected versions of Red Hat Enterprise Linux 9 and 10.
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, responsible for managing domain properties and automating certificate provisioning via the ACME protocol, contains a vulnerability (CVE-2026-29168) where unrestricted OCSP responses can cause resource exhaustion. This flaw could impact the availability of services relying on mod_md. Red Hat has issued security updates to fix this issue in specific versions of their Enterprise Linux distributions.
Potential Impact
The vulnerability can lead to resource exhaustion on systems running affected versions of mod_md, potentially degrading service availability. There is no indication of exploitation in the wild. The impact is rated as moderate by Red Hat.
Mitigation Recommendations
Red Hat has released official security updates addressing this vulnerability. Users should apply the provided patches as detailed in Red Hat Advisory RHSA-2026:30844. For detailed update instructions, refer to https://access.redhat.com/articles/11258. 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
- State
- PUBLISHED
Threat ID: 6a42ed6527e9c79719937dc4
Added to database: 06/29/2026, 22:10:45 UTC
Last enriched: 09/19/2026, 02:17:04 UTC
Last updated: 09/28/2026, 01:47:42 UTC
Views: 129
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