Red Hat Security Advisory: multicluster engine for Kubernetes v2.8.7 security update
The multicluster engine for Kubernetes v2.8 images 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
The multicluster engine for Kubernetes v2.8 images include a vulnerability in the kin-openapi library (CVE-2025-30153) that allows an attacker to cause excessive memory consumption by uploading a specially crafted ZIP file (ZIP bomb). This leads to resource exhaustion and potential denial of service conditions. The vulnerability is categorized under CWE-409 (Improper Handling of Highly Compressed Data) and CWE-551. Red Hat has published a security advisory (RHSA-2026:22689) describing the issue and recommending mitigation steps. No official patch or fix has been released yet. The vulnerability affects the availability of the service but does not impact confidentiality or integrity. The advisory also references a related CVE-2026-33186 but details are not provided.
Potential Impact
This vulnerability can cause denial of service by exhausting system memory resources when processing maliciously crafted ZIP files via the affected API endpoints. This leads to degraded system performance or crashes, impacting the availability of the multicluster engine for Kubernetes. There is no impact on confidentiality or integrity reported. No known active exploitation has been observed.
Mitigation Recommendations
Red Hat advises disabling any API endpoints in the OpenAPI schema that accept multipart/form-data or allow uploading ZIP files to mitigate this vulnerability. Since no official patch or fix is currently available, applying this configuration change is the recommended mitigation. Monitor Red Hat advisories for updates regarding an official fix.
Red Hat Security Advisory: multicluster engine for Kubernetes v2.8.7 security update
Description
The multicluster engine for Kubernetes v2.8 images 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
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The multicluster engine for Kubernetes v2.8 images include a vulnerability in the kin-openapi library (CVE-2025-30153) that allows an attacker to cause excessive memory consumption by uploading a specially crafted ZIP file (ZIP bomb). This leads to resource exhaustion and potential denial of service conditions. The vulnerability is categorized under CWE-409 (Improper Handling of Highly Compressed Data) and CWE-551. Red Hat has published a security advisory (RHSA-2026:22689) describing the issue and recommending mitigation steps. No official patch or fix has been released yet. The vulnerability affects the availability of the service but does not impact confidentiality or integrity. The advisory also references a related CVE-2026-33186 but details are not provided.
Potential Impact
This vulnerability can cause denial of service by exhausting system memory resources when processing maliciously crafted ZIP files via the affected API endpoints. This leads to degraded system performance or crashes, impacting the availability of the multicluster engine for Kubernetes. There is no impact on confidentiality or integrity reported. No known active exploitation has been observed.
Mitigation Recommendations
Red Hat advises disabling any API endpoints in the OpenAPI schema that accept multipart/form-data or allow uploading ZIP files to mitigate this vulnerability. Since no official patch or fix is currently available, applying this configuration change is the recommended mitigation. Monitor Red Hat advisories for updates regarding an official fix.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:22689
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-33186"]
Threat ID: 6a209826e29bf47b50ebc746
Added to database: 06/03/2026, 21:09:58 UTC
Last enriched: 08/11/2026, 19:24:47 UTC
Last updated: 09/15/2026, 01:45:44 UTC
Views: 119
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