High [CVE-2026-71473] addonfactory.GetValuesFromAddonAnnotation enables arbitrary Helm-values override per spoke
This high-severity Red Hat Linux advisory covers CVE-2026-71473 affecting Red Hat Advanced Cluster Management for Kubernetes 2.
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Summary
A flaw was found in the `search-v2-operator` component. A user with specific administrative permissions on a managed cluster can exploit a vulnerability that allows them to inject arbitrary configuration data.
This manipulation can override critical settings, leading to the replacement of container images. This ultimately results in container image injection on the managed cluster, potentially compromising its integrity.
Important: This flaw in Red Hat Advanced Cluster Management for Kubernetes allows a user with `patch managedclusteraddons` permission on a managed cluster to achieve container image injection.
By manipulating the `addon.open-cluster-management.io/values` annotation on a `ManagedClusterAddOn`, an attacker can override Helm values, leading to privilege escalation and arbitrary code execution on the managed cluster. Red Hat severity: Important — CVSS 8.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N).
Weakness: CWE-915. Red Hat does not currently list a fixing RHSA for this CVE.
Affected product named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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