CVE-2026-11817 Grafana CVE debrief

Who should care

Grafana users with multi-organization stacks, particularly those with Org Admins, should be aware of this vulnerability and take steps to protect their deployments. Affected operators should review their Grafana stack configurations to ensure only authorized access to organization data. Vulnerability management and security teams should prioritize verifying configurations and restricting Org Admin access to their respective organizations. Platform administrators should monitor for unusual activity related to permission data access and ensure that Org Admins only have access to their respective organizations. Security teams should also review compensating controls for exposed systems while remediation is scheduled and verified. Asset inventory management should track exceptions and retest remediated assets to ensure that the vulnerability is properly addressed. Change management processes should be implemented to roll back changes if necessary, and source tracking should be used to monitor for potential security incidents related to this vulnerability. This vulnerability has a CVSS score of 5.3 and a severity rating of MEDIUM, indicating a moderate level of risk. However, the actual risk may vary depending on the specific deployment and configuration of the affected Grafana stacks. Therefore, it is essential for affected organizations to carefully assess their exposure and take appropriate measures to mitigate the vulnerability. In addition to these measures, defenders should verify that their Grafana stacks are configured to prevent unauthorized access to organization data and monitor for potential security incidents related to this vulnerability. They should also review the official CVE Program record and NVD detail page for further information on this vulnerability and its potential impact on their deployments. By taking these steps, defenders can help protect their Grafana stacks from potential exploitation of this vulnerability and reduce the risk of a security incident. To further protect their deployments, defenders may also want to consider implementing additional security controls, such as monitoring for unusual activity related to permission data access

Technical summary

CVE-2026-11817 is a limited cross-organization information disclosure vulnerability affecting Grafana stacks configured with multiple organizations. An Org Admin can access permission data of other organizations, including dashboard and folder identifiers and per-user permission mappings, via the GET /api/access-control/users/permissions/search endpoint. This vulnerability does not expose dashboard contents, panels, query results, datasource credentials, secrets, or personal data.

Defensive priority

Organizations using Grafana stacks with multiple organizations should verify their configurations and ensure that Org Admins only have access to their respective organizations.

Recommended defensive actions

• Verify Grafana stack configurations to ensure only authorized access to organization data
• Restrict Org Admin access to their respective organizations
• Monitor for unusual activity related to permission data access
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Implement change management processes to roll back changes if necessary
• Use source tracking to monitor for potential security incidents related to this vulnerability

Evidence notes

The CVE-2026-11817 vulnerability affects Grafana stacks with multiple organizations, allowing an Org Admin to access permission data of other organizations. The disclosed data is limited to dashboard and folder identifiers and per-user permission mappings. Official records from CVE Program and NVD provide details. To verify, defenders should review Grafana stack configurations, check for unusual activity related to permission data access, and ensure that Org Admins only have access to their respective organizations.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.