Race condition in Grafana - CVE-2026-28379
Published: May 18, 2026
Vulnerability identifier: #VU131634
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-28379
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to a race condition in Grafana Live when handling concurrent requests. A remote user can send concurrent requests to cause a denial of service.
The issue can trigger a fatal map access error and complete service unavailability until the Grafana server is restarted.
Affected software
Grafana
How to mitigate CVE-2026-28379
Install security update from vendor's website.
Grafana - addressed in 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