CVE-2026-28379: Grafana

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A race condition in Grafana Live allows authenticated users with Viewer role to trigger a server crash by sending concurrent requests that cause a fatal map access error. This results in complete service unavailability requiring restart of the Grafana server.

Affected products

• Grafana Grafana: from 8.5.0, before 11.6.14 (fixed in 11.6.14); from 12.2.0, before 12.2.8 (fixed in 12.2.8); from 12.3.0, before 12.3.6 (fixed in 12.3.6); from 12.4.0, before 12.4.3 (fixed in 12.4.3); version 11.6.14 only; version 12.2.8 only; …

Published 2026-05-13. Last modified 2026-06-17.