Viewer-triggered race condition in Grafana Live leads to complete server crash
Medium
- Advisory ID:
- CVE-2026-28379
- Published:
- 2026-05-13
- Product:
- Grafana
- CVSS Score:
- 6.5
- CVSS Vector:
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Fixed Versions:
- >=11.6.14+security-04>=12.2.8+security-04>=12.3.6+security-04>=12.4.3+security-02>=13.0.1+security-01
Summary
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.
This vulnerability was reported via our bug bounty program.