Security Advisory for Grafana MCP Server and mcp-grafana

Grafana Labs released a security advisory on August 11, 2026, regarding a vulnerability in two of their components: Grafana MCP Server and mcp-grafana. Both products are affected up to and including version 1.0.0. The vulnerability is tracked as CVE-2026-19516. The Cyber Centre (CCCS) advises administrators to review the official Grafana security documentation and apply relevant patches or updates to address this exposure. As this is a component-specific issue within the Grafana ecosystem, organizations utilizing these specific MCP (Model Context Protocol) integration tools should prioritize verification of their current deployment versions.

Impact

Successful exploitation of CVE-2026-19516 could potentially lead to security compromises within the affected observability infrastructure. While the source does not detail the specific impact or technical nature of the exploit, vulnerabilities in such components often allow for unauthorized access or information disclosure. Organizations running versions 1.0.0 or older are at risk until the updates provided by Grafana Labs are applied.

Recommendation

• Inventory all systems running Grafana MCP Server or mcp-grafana to identify any instances at version 1.0.0 or older.
• Apply the latest security patches provided by Grafana Labs as listed on their official security portal.
• Monitor logs for unusual access patterns to the MCP server endpoint if immediate patching is not possible.