Grafana CVE-2026-14199

Self-managed Grafana instances using authentication proxy with identity caching are vulnerable to privilege escalation, allowing authenticated users to impersonate administrators and gain full access to organizational monitoring infrastructure. This puts sensitive infrastructure insights and critical system configurations at risk. Organizations running Grafana with forwarded identity attributes should prioritize immediate remediation.

Within 24 hours, audit all self-managed Grafana deployments to determine whether Auth Proxy and identity caching are both enabled-exploitation requires this non-default configuration. Over the next 7 days, implement compensating controls by disabling identity caching in your authentication proxy if operationally feasible, restricting Grafana administrator role membership to essential personnel only, and enabling audit logging with real-time alerts for any role escalations. Within 30 days, monitor Grafana security advisories and release notes closely; upgrade immediately when a patched version is released and conduct a comprehensive audit of administrative account activity during the interim period to detect any unauthorized privilege escalations that may have occurred.

No vendor-released patch identified at time of analysis. Interim mitigations include: (1) Disable identity caching in your authentication proxy if operationally compatible with your identity provider; (2) Restrict Grafana admin role assignment to a minimal set of verified users with documented business justification; (3) Implement real-time alerting for any role escalation events or administrative account authentication from unusual sources; (4) Enforce network-level segmentation to contain potential lateral movement if an administrative account is compromised; (5) Increase audit logging verbosity for all authentication proxy and Grafana role assignment changes; (6) Conduct quarterly access reviews of Grafana administrator accounts.