CVE-2026-22640 is an access control vulnerability categorized under CWE-284, discovered in the SICK AG Incoming Goods Suite, which integrates Grafana OSS for monitoring and visualization. The flaw exists in the DELETE /api/org/users/ REST API endpoint, allowing an Organization administrator to delete the Server administrator account permanently. This is possible when the Server administrator is either not part of any organization or belongs to the same organization as the Organization administrator. Exploitation requires the attacker to have Organization administrator privileges but does not require user interaction. The deletion of the Server administrator account results in the loss of super-user permissions, making the Grafana instance unmanageable. This impacts the integrity and availability of the system, as no administrative recovery can be performed without direct backend intervention. The vulnerability affects all users, organizations, and teams managed within the Grafana instance, potentially disrupting monitoring and operational workflows. The CVSS 3.1 base score of 5.5 reflects a medium severity, considering the network attack vector, low attack complexity, and the requirement for high privileges. No known exploits have been reported in the wild, and no official patches have been linked at the time of publication. Organizations relying on this suite should assess their Grafana configurations and administrative role assignments to mitigate risk.

For European organizations, the impact of CVE-2026-22640 can be significant, especially for those relying on SICK AG's Incoming Goods Suite integrated with Grafana OSS for operational monitoring and analytics. The loss of Server administrator accounts can lead to a complete administrative lockout, halting the ability to manage dashboards, user permissions, and system configurations. This can disrupt supply chain visibility, inventory management, and other critical logistics functions. The inability to recover administrative access without backend intervention could cause prolonged downtime and operational delays. Confidentiality is less impacted, but integrity and availability are severely affected. Organizations in manufacturing, logistics, and industrial automation sectors using this product may face operational risks and potential compliance issues if monitoring systems become unmanageable. The medium CVSS score suggests moderate urgency but highlights the need for timely mitigation to avoid operational disruptions.

1. Restrict Organization administrator privileges strictly to trusted personnel and regularly audit role assignments to minimize the risk of misuse. 2. Implement multi-factor authentication (MFA) for all administrative accounts to reduce the risk of credential compromise. 3. Regularly back up Grafana configurations and user role data to enable recovery in case of accidental or malicious deletions. 4. Monitor API usage logs for suspicious DELETE /api/org/users/ requests, especially those targeting Server administrator accounts. 5. If possible, isolate Server administrator accounts in separate organizations or ensure they are not part of the same organization as Organization administrators to prevent exploitation. 6. Engage with SICK AG and Grafana OSS communities for patches or updates addressing this vulnerability and apply them promptly once available. 7. Develop and test incident response procedures for administrative lockout scenarios, including backend recovery methods. 8. Consider deploying network segmentation and access controls to limit exposure of Grafana management interfaces to trusted networks only.