CVE-2026-27877: Grafana

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

When using public dashboards and direct data-sources, all direct data-sources' passwords are exposed despite not being used in dashboards. No passwords of proxied data-sources are exposed. We encourage all direct data-sources to be converted to proxied data-sources as far as possible to improve your deployments' security.

Affected products

• Grafana Grafana: before 9.3.0 (fixed in 9.3.0); from 11.6.14, before 12.0.0 (fixed in 12.0.0); from 12.1.10, before 12.2.0 (fixed in 12.2.0); from 12.2.8, before 12.3.0 (fixed in 12.3.0); from 12.3.6, before 12.4.0 (fixed in 12.4.0)

Published 2026-03-27. Last modified 2026-07-15.