Red Hat Security Advisory: multicluster Engine for Kubernetes 2.5.9 container updates
multicluster engine for Kubernetes v2.5.9 images 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. Security fix(es): * golang.org/x/oauth2/jws: Unexpected memory consumption during token parsing in golang.org/x/oauth2/jws (CVE-2025-22868) * golang-jwt/jwt: jwt-go allows excessive memory allocation during header parsing (JWT) (CVE-2025-30204)
AI Analysis
Technical Summary
The multicluster Engine for Kubernetes versions before 2.5.9 contain vulnerabilities in third-party libraries used for token parsing: CVE-2025-22868 in golang.org/x/oauth2/jws causes unexpected memory consumption during token parsing, and CVE-2025-30204 in golang-jwt/jwt allows excessive memory allocation during JWT header parsing. These flaws could lead to denial of service conditions due to resource exhaustion. Red Hat's advisory RHSA-2025:4473 provides updated container images in version 2.5.9 that address these issues.
Potential Impact
The vulnerabilities can cause excessive memory consumption when parsing tokens or JWT headers, potentially leading to denial of service by exhausting system resources. This impacts the stability and availability of the multicluster Engine for Kubernetes when processing authentication tokens.
Mitigation Recommendations
Red Hat has released updated container images in multicluster Engine for Kubernetes version 2.5.9 that fix these vulnerabilities. Users should upgrade to version 2.5.9 or later to remediate the issues. Refer to Red Hat's official documentation for installation instructions. No additional mitigations are specified in the advisory.
Red Hat Security Advisory: multicluster Engine for Kubernetes 2.5.9 container updates
Description
multicluster engine for Kubernetes v2.5.9 images 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. Security fix(es): * golang.org/x/oauth2/jws: Unexpected memory consumption during token parsing in golang.org/x/oauth2/jws (CVE-2025-22868) * golang-jwt/jwt: jwt-go allows excessive memory allocation during header parsing (JWT) (CVE-2025-30204)
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The multicluster Engine for Kubernetes versions before 2.5.9 contain vulnerabilities in third-party libraries used for token parsing: CVE-2025-22868 in golang.org/x/oauth2/jws causes unexpected memory consumption during token parsing, and CVE-2025-30204 in golang-jwt/jwt allows excessive memory allocation during JWT header parsing. These flaws could lead to denial of service conditions due to resource exhaustion. Red Hat's advisory RHSA-2025:4473 provides updated container images in version 2.5.9 that address these issues.
Potential Impact
The vulnerabilities can cause excessive memory consumption when parsing tokens or JWT headers, potentially leading to denial of service by exhausting system resources. This impacts the stability and availability of the multicluster Engine for Kubernetes when processing authentication tokens.
Mitigation Recommendations
Red Hat has released updated container images in multicluster Engine for Kubernetes version 2.5.9 that fix these vulnerabilities. Users should upgrade to version 2.5.9 or later to remediate the issues. Refer to Red Hat's official documentation for installation instructions. No additional mitigations are specified in the advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:4473
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-30204"]
Threat ID: 6a160972e29bf47b5063a4d4
Added to database: 05/26/2026, 20:58:26 UTC
Last enriched: 08/14/2026, 22:04:10 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 36
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