Red Hat Security Advisory: multicluster engine for Kubernetes v2.10.4 security update
The multicluster engine for Kubernetes provides the foundational components that are necessary for the centralized management of multiple Kubernetes-based clusters across data centers, public clouds, and private clouds. You can use the engine to create new Red Hat OpenShift Container Platform clusters or to bring existing Kubernetes-based clusters under management by importing them. After the clusters are managed, you can use the APIs that are provided by the engine to distribute configuration based on placement policy.
AI Analysis
Technical Summary
CVE-2025-58183 is a denial-of-service vulnerability in the Go archive/tar package where tar.Reader does not limit the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive can cause excessive memory allocation leading to out-of-memory conditions and denial of service in applications processing such archives. This affects Red Hat OpenShift Container Platform versions prior to the fixed releases 4.15.62, 4.16.62, 4.17.62, 4.18.24, 4.20.62, and 4.21.62. The vulnerability has moderate severity and no other security impacts beyond denial of service. Red Hat has published updated RPM packages and container images to remediate this issue.
Potential Impact
An attacker able to supply a specially crafted GNU tar pax 1.0 archive to an affected Go application can cause the application to allocate excessive memory, resulting in an out-of-memory condition and denial of service. There is no impact on confidentiality or integrity. No known exploits in the wild have been reported.
Mitigation Recommendations
Red Hat has released updated OpenShift Container Platform packages and container images that fix this vulnerability. Users should upgrade to OpenShift versions 4.15.62, 4.16.62, 4.17.62, 4.18.24, 4.20.62, or 4.21.62 or later as appropriate. No other mitigations are currently available or meet Red Hat's criteria. Applying the official updates is the recommended remediation.
Red Hat Security Advisory: multicluster engine for Kubernetes v2.10.4 security update
Description
The multicluster engine for Kubernetes provides the foundational components that are necessary for the centralized management of multiple Kubernetes-based clusters across data centers, public clouds, and private clouds. You can use the engine to create new Red Hat OpenShift Container Platform clusters or to bring existing Kubernetes-based clusters under management by importing them. After the clusters are managed, you can use the APIs that are provided by the engine to distribute configuration based on placement policy.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-58183 is a denial-of-service vulnerability in the Go archive/tar package where tar.Reader does not limit the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A specially crafted tar archive can cause excessive memory allocation leading to out-of-memory conditions and denial of service in applications processing such archives. This affects Red Hat OpenShift Container Platform versions prior to the fixed releases 4.15.62, 4.16.62, 4.17.62, 4.18.24, 4.20.62, and 4.21.62. The vulnerability has moderate severity and no other security impacts beyond denial of service. Red Hat has published updated RPM packages and container images to remediate this issue.
Potential Impact
An attacker able to supply a specially crafted GNU tar pax 1.0 archive to an affected Go application can cause the application to allocate excessive memory, resulting in an out-of-memory condition and denial of service. There is no impact on confidentiality or integrity. No known exploits in the wild have been reported.
Mitigation Recommendations
Red Hat has released updated OpenShift Container Platform packages and container images that fix this vulnerability. Users should upgrade to OpenShift versions 4.15.62, 4.16.62, 4.17.62, 4.18.24, 4.20.62, or 4.21.62 or later as appropriate. No other mitigations are currently available or meet Red Hat's criteria. Applying the official updates is the recommended remediation.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:4418
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-65637"]
- State
- PUBLISHED
Threat ID: 6a160976e29bf47b506419ad
Added to database: 05/26/2026, 20:58:30 UTC
Last enriched: 08/14/2026, 21:29:55 UTC
Last updated: 09/14/2026, 22:01:30 UTC
Views: 99
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