Red Hat Security Advisory: mod_md security update
A security vulnerability (CVE-2025-55753) affecting the mod_md module of the Apache HTTP Server on Red Hat Enterprise Linux 9.0 has been identified. The mod_md module automates certificate provisioning using the ACME protocol for managed domains and their virtual hosts. The vulnerability involves unintended retry intervals in mod_md, which could affect the certificate management process. Red Hat has issued a security advisory (RHSA-2026:0092) addressing this issue with an update available for affected systems. The severity of this vulnerability is rated as high by the source, but no CVSS score is provided.
AI Analysis
Technical Summary
The mod_md module in Apache HTTP Server, responsible for managing domain properties and automating certificate provisioning via the ACME protocol, contains a vulnerability identified as CVE-2025-55753. This vulnerability relates to unintended retry intervals within the module's operation. Red Hat Product Security has rated this issue as important and has released updated packages for Red Hat Enterprise Linux 9 to fix the problem. The advisory references the update mod_md-2.4.26-1.el9_7.1 and provides detailed package information for multiple architectures. No CVSS score is provided in the advisory.
Potential Impact
The vulnerability affects the mod_md module's retry interval logic, potentially causing unintended behavior in certificate provisioning and renewal automation. While the exact impact details are not specified, the issue is rated as important by Red Hat, indicating a significant security concern that could affect the reliability or security of automated certificate management in affected systems.
Mitigation Recommendations
Red Hat has released an updated version of the mod_md package (mod_md-2.4.26-1.el9_7.1) for Red Hat Enterprise Linux 9 and related variants. Applying this update will remediate the vulnerability. Users should follow Red Hat's official guidance on applying the update as detailed in the advisory (https://access.redhat.com/articles/11258). Patch status is confirmed as an official fix available from Red Hat.
Red Hat Security Advisory: mod_md security update
Description
A security vulnerability (CVE-2025-55753) affecting the mod_md module of the Apache HTTP Server on Red Hat Enterprise Linux 9.0 has been identified. The mod_md module automates certificate provisioning using the ACME protocol for managed domains and their virtual hosts. The vulnerability involves unintended retry intervals in mod_md, which could affect the certificate management process. Red Hat has issued a security advisory (RHSA-2026:0092) addressing this issue with an update available for affected systems. The severity of this vulnerability is rated as high by the source, but no CVSS score is provided.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The mod_md module in Apache HTTP Server, responsible for managing domain properties and automating certificate provisioning via the ACME protocol, contains a vulnerability identified as CVE-2025-55753. This vulnerability relates to unintended retry intervals within the module's operation. Red Hat Product Security has rated this issue as important and has released updated packages for Red Hat Enterprise Linux 9 to fix the problem. The advisory references the update mod_md-2.4.26-1.el9_7.1 and provides detailed package information for multiple architectures. No CVSS score is provided in the advisory.
Potential Impact
The vulnerability affects the mod_md module's retry interval logic, potentially causing unintended behavior in certificate provisioning and renewal automation. While the exact impact details are not specified, the issue is rated as important by Red Hat, indicating a significant security concern that could affect the reliability or security of automated certificate management in affected systems.
Mitigation Recommendations
Red Hat has released an updated version of the mod_md package (mod_md-2.4.26-1.el9_7.1) for Red Hat Enterprise Linux 9 and related variants. Applying this update will remediate the vulnerability. Users should follow Red Hat's official guidance on applying the update as detailed in the advisory (https://access.redhat.com/articles/11258). Patch status is confirmed as an official fix available from Red Hat.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:0092
- Cve Count
- 1
Threat ID: 6a4049de27e9c797198310df
Added to database: 06/27/2026, 22:08:30 UTC
Last enriched: 07/20/2026, 21:45:28 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 56
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