CVE-2026-71470: Red Hat Advanced Cluster Management For Kubernetes 2.11

Critical severity, CVSS 9.1. EPSS: 0.7% chance of exploitation in the next 30 days.

A flaw was found in the search-v2-operator. This vulnerability allows a privileged user, specifically a Custom Resource (CR) editor, to manipulate Search CR fields such as imageOverride, arguments, and environment variables without proper validation. By exploiting this, an attacker can mount arbitrary secrets into a search container's environment or replace the container image with an attacker-controlled one. This leads to privilege escalation and can result in a full cluster compromise due to the ServiceAccount's extensive impersonation permissions.

Affected products

• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.11: before 1787688827 (fixed in 1787688827)
• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.13: before 1787682112 (fixed in 1787682112)
• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.14: before 1787682033 (fixed in 1787682033)
• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.15: before 1787681674 (fixed in 1787681674)
• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.16: before 1787681686 (fixed in 1787681686)
• Red Hat Red Hat Advanced Cluster Management For Kubernetes 2.17: before 1787681651 (fixed in 1787681651)

Published 2026-08-19. Last modified 2026-08-27.