Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.1
The cert-manager Operator for Red Hat OpenShift 1. 18. 1 introduces certificate authorities and certificates as first-class Kubernetes API resources, enabling certificate management within clusters. Multiple vulnerabilities identified by CVE-2025-61727 and related CVEs affect this operator. The advisory indicates a high severity level but does not provide specific technical details or a CVSS score. The operator can be upgraded automatically if the approval policy is set to Automatic, which is the default, or manually if set otherwise. No explicit fixes or patches are detailed in the advisory, but upgrading to the latest operator version is recommended.
AI Analysis
Technical Summary
The cert-manager Operator for Red Hat OpenShift extends Kubernetes by managing certificate authorities and certificates as native API resources. Several vulnerabilities (CVE-2025-61727, CVE-2025-61729, CVE-2025-66418, CVE-2025-66471, CVE-2026-21441) have been identified affecting version 1.18.1 and related images. The Red Hat advisory (RHSA-2026:1042) classifies these issues as important with high severity but does not provide detailed technical exploit information or CVSS metrics. The operator supports automatic upgrades if the installation uses the default Automatic approval policy; otherwise, manual approval is required. No explicit patch or fix details are provided beyond upgrading the operator to the latest image.
Potential Impact
The vulnerabilities affect the cert-manager Operator for Red Hat OpenShift, potentially impacting certificate management within Kubernetes clusters. The advisory assigns a high severity rating but does not specify the exact impact or exploitation details. There are no known exploits in the wild at this time. The lack of detailed CVSS scoring or technical exploit information limits precise impact assessment.
Mitigation Recommendations
Red Hat recommends ensuring all previously released errata are applied before upgrading. If the operator's installation uses the default Automatic approval policy, the upgrade to the fixed operator version will occur automatically, requiring no user action. For Manual approval policy users, manual approval of the upgrade is necessary. Users should follow the official Red Hat OpenShift cert-manager Operator documentation for upgrade procedures. Since no explicit patch details are provided, upgrading the operator to the latest available version is the primary mitigation step.
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.1
Description
The cert-manager Operator for Red Hat OpenShift 1. 18. 1 introduces certificate authorities and certificates as first-class Kubernetes API resources, enabling certificate management within clusters. Multiple vulnerabilities identified by CVE-2025-61727 and related CVEs affect this operator. The advisory indicates a high severity level but does not provide specific technical details or a CVSS score. The operator can be upgraded automatically if the approval policy is set to Automatic, which is the default, or manually if set otherwise. No explicit fixes or patches are detailed in the advisory, but upgrading to the latest operator version is recommended.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The cert-manager Operator for Red Hat OpenShift extends Kubernetes by managing certificate authorities and certificates as native API resources. Several vulnerabilities (CVE-2025-61727, CVE-2025-61729, CVE-2025-66418, CVE-2025-66471, CVE-2026-21441) have been identified affecting version 1.18.1 and related images. The Red Hat advisory (RHSA-2026:1042) classifies these issues as important with high severity but does not provide detailed technical exploit information or CVSS metrics. The operator supports automatic upgrades if the installation uses the default Automatic approval policy; otherwise, manual approval is required. No explicit patch or fix details are provided beyond upgrading the operator to the latest image.
Potential Impact
The vulnerabilities affect the cert-manager Operator for Red Hat OpenShift, potentially impacting certificate management within Kubernetes clusters. The advisory assigns a high severity rating but does not specify the exact impact or exploitation details. There are no known exploits in the wild at this time. The lack of detailed CVSS scoring or technical exploit information limits precise impact assessment.
Mitigation Recommendations
Red Hat recommends ensuring all previously released errata are applied before upgrading. If the operator's installation uses the default Automatic approval policy, the upgrade to the fixed operator version will occur automatically, requiring no user action. For Manual approval policy users, manual approval of the upgrade is necessary. Users should follow the official Red Hat OpenShift cert-manager Operator documentation for upgrade procedures. Since no explicit patch details are provided, upgrading the operator to the latest available version is the primary mitigation step.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:1042
- Cve Count
- 5
- Additional Cves
- ["CVE-2025-61729","CVE-2025-66418","CVE-2025-66471","CVE-2026-21441"]
- Cvss Version
- null
Threat ID: 6a16096ae29bf47b5062f640
Added to database: 5/26/2026, 8:58:18 PM
Last enriched: 5/27/2026, 1:34:44 AM
Last updated: 5/27/2026, 4:54:14 AM
Views: 2
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