CVE-2026-28379

Medium

Description

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.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Grafana

PublishedMay 13, 2026

First seenMay 13, 2026

Weakness typeCWE-362Race condition

How to fix

Update

grafana grafana11.6.14, 12.2.8, 12.3.6, 12.4.3 or later

Vendor advisories

grafana.com/security/security-advisories/cve-2026-28379

Affected products

Product	Affected versions	Fixed in
grafana grafana	8.5.0 ≤ v < 11.6.14, 12.2.0 ≤ v < 12.2.8, 12.3.0 ≤ v < 12.3.6, 12.4.0 ≤ v < 12.4.3, 11.6.14, 12.2.8, 12.3.6, 12.4.3, 13.0.0, 13.0.1	11.6.14, 12.2.8, 12.3.6, 12.4.3

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