Red Hat Security Advisory: Red Hat Advanced Cluster Management for Kubernetes v2.15.7 security update
Description
Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which add new features and enhancements, bug fixes, and updated container images. See the following Release Notes documentation, which will be updated shortly for this release, for additional details about this release: https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_management_for_kubernetes/2.15/html-single/release_notes/index#acm-release-notes
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-53547 is a command injection vulnerability in Helm (helm.sh/helm/v3) where an attacker can craft a malicious Chart.yaml with dependencies linked in a Chart.lock file. If the Chart.lock file is a symbolic link to an executable file, such as a shell script, and a user runs 'helm dependency update', the crafted content is written to and executed via the symlink, leading to local code execution. This vulnerability affects Red Hat OpenShift Container Platform versions prior to 4.14.57 and versions 4.17 and 4.18. The issue has been fixed in Helm version 3.18.4, and Red Hat has released OpenShift Container Platform 4.14.57 with the patched Helm packages. ArgoCD, another GitOps tool, is not vulnerable due to its usage patterns and scanning features.
Potential Impact
Successful exploitation allows an attacker with local access to execute arbitrary code on the system running Helm by leveraging crafted Helm charts with malicious symbolic links. This can lead to privilege escalation or unauthorized control of the affected system. The vulnerability has a high severity rating due to the potential for local code execution without requiring elevated privileges, but user interaction is required to trigger the update process.
Mitigation Recommendations
A fix is available in Red Hat OpenShift Container Platform 4.14.57, which includes updated Helm packages patched against this vulnerability. Users should upgrade to version 4.14.57 or later to remediate this issue. No effective mitigations meeting Red Hat's criteria are available other than applying the update. Users should follow Red Hat's official upgrade instructions using the OpenShift CLI or web console to apply the update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:16535
- Cve Count
- 1
Threat ID: 6a3de72d4853345fc1127dd5
Added to database: 06/26/2026, 02:42:53 UTC
Last enriched: 08/16/2026, 17:19:13 UTC
Last updated: 10/10/2026, 21:26:02 UTC
Views: 166
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