CVE-2026-71474 in Advanced Cluster Management for Kubernetes
Summary
by MITRE • 08/11/2026
A flaw was found in insights-client. When the application receives a non-200 response, it logs the request headers, which can include the cloud.openshift.com pull-secret token. A local user with access to pod logs on the hub could read this long-lived credential. This information disclosure could grant unauthorized access to Red Hat cloud services.
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Analysis
by VulDB Data Team • 08/11/2026
The vulnerability identified in insights-client represents a critical information disclosure flaw that undermines the security posture of Red Hat cloud services infrastructure. This issue manifests when the application processes HTTP responses that deviate from the standard 200 OK status code, inadvertently logging sensitive authentication data within request headers. The flaw specifically impacts how the system handles error conditions and response processing, creating an unintended pathway for credential exposure.
The technical implementation of this vulnerability stems from insufficient sanitization of log output during error handling procedures. When insights-client encounters non-200 responses from cloud.openshift.com, it fails to properly filter or redact authentication tokens present in HTTP headers before logging them to the application logs. The pull-secret token, which serves as a long-lived credential for accessing Red Hat cloud services, becomes exposed through these log entries. This design flaw directly contravenes secure coding practices and demonstrates inadequate input validation and output sanitization mechanisms.
The operational impact of this vulnerability extends beyond simple information disclosure, creating potential attack vectors for malicious actors within the targeted environment. A local user with access to pod logs on the hub system can readily extract the exposed pull-secret token from log files, potentially gaining unauthorized access to Red Hat cloud services and associated resources. This credential exposure enables attackers to perform actions such as accessing cloud infrastructure, manipulating service configurations, or conducting further reconnaissance activities against the targeted environment. The long-lived nature of the pull-secret token amplifies the risk, as compromised credentials can remain effective for extended periods without immediate detection.
This vulnerability aligns with CWE-209, Information Exposure Through an Error Message, and CWE-532, Insertion of Sensitive Information into Log File, while also mapping to ATT&CK technique T1567.002 for cloud service credential exposure. The flaw demonstrates poor separation of concerns in the application's error handling architecture, where sensitive information flows directly into logging mechanisms without proper sanitization protocols. Organizations should implement immediate mitigations including log filtering to remove authentication tokens from all output, implementing proper header sanitization before logging, and establishing monitoring for unauthorized access to pod logs. Additionally, credential rotation procedures should be implemented immediately upon discovery of the vulnerability, with enhanced logging controls to prevent similar issues in future deployments.
The incident highlights fundamental security requirements for cloud-native applications and emphasizes the importance of secure logging practices in distributed systems. Proper implementation of this mitigation requires comprehensive review of all error handling pathways within the application stack, ensuring that no sensitive data flows into log output regardless of response status codes. Security teams should also implement automated log scanning mechanisms to detect potential credential exposure patterns and establish strict access controls for pod log systems to limit local user privileges that could lead to credential compromise.