CVE-2025-11393 is a vulnerability identified in the runtimes-inventory-rhel8-operator component of Red Hat Lightspeed (formerly Insights) for Runtimes 1. The root cause is an internal proxy misconfiguration where the proxy attaches the cluster's main administrative credentials to all incoming commands indiscriminately, instead of limiting these credentials to specific report-related commands. This misconfiguration creates a 'confused deputy' problem, where the proxy acts on behalf of users with elevated privileges unintentionally. As a result, any standard user within the Kubernetes or OpenShift cluster environment can send commands through this proxy and gain administrative control over the cluster's management platform. This escalates privileges from a low-privilege user to full cluster administrator rights without requiring user interaction, making exploitation relatively straightforward once access to the cluster is obtained. The vulnerability impacts confidentiality and integrity severely, as attackers can read sensitive data and modify cluster configurations or statuses. The CVSS 3.1 score of 8.7 reflects these factors: attack vector is adjacent network (AV:A), low attack complexity (AC:L), privileges required are low (PR:L), no user interaction (UI:N), scope is changed (S:C), and impacts on confidentiality and integrity are high (C:H/I:H) with no impact on availability (A:N). No public exploits have been reported yet, but the flaw demands urgent attention due to the critical nature of cluster administrative credentials being exposed. The vulnerability affects Red Hat Lightspeed for Runtimes 1, a tool used for runtime insights and management in containerized environments, particularly Red Hat OpenShift clusters.

The vulnerability allows an attacker with standard user access within a cluster to escalate privileges to full cluster administrator rights on the Red Hat management platform. This can lead to unauthorized disclosure of sensitive configuration data, unauthorized modification or disruption of cluster configurations, and potentially persistent control over cluster operations. The confidentiality and integrity of the cluster environment are severely compromised, which can affect application workloads, data security, and compliance posture. Given the critical role of cluster administrators in managing container orchestration and runtime environments, exploitation could enable lateral movement, deployment of malicious workloads, or disruption of business-critical services. Organizations relying on Red Hat Lightspeed for Runtimes for operational insights and management are at risk of significant operational and security impacts if this vulnerability is exploited.

1. Immediately apply any patches or updates provided by Red Hat addressing CVE-2025-11393 once available. 2. Until patches are applied, restrict access to the runtimes-inventory-rhel8-operator component and the Red Hat Lightspeed management platform to only trusted users and service accounts. 3. Implement strict role-based access control (RBAC) policies within the cluster to minimize the number of users with permissions to interact with the proxy or management platform. 4. Monitor cluster logs and audit trails for unusual command activity or privilege escalations originating from standard user accounts. 5. Consider network segmentation to limit access to the proxy component to only necessary internal services. 6. Conduct regular security reviews and penetration testing focused on internal proxy components and privilege escalation paths. 7. Educate cluster administrators and DevOps teams about the risks of proxy misconfigurations and the importance of least privilege principles. 8. Use runtime security tools to detect anomalous behavior indicative of exploitation attempts.