Grafana Live Race Condition: Viewer Users Can Crash Server
CVE-2026-28379 Published on May 13, 2026
Viewer-triggered race condition in Grafana Live leads to complete server crash
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.
Weakness Type
What is a Race Condition Vulnerability?
The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CVE-2026-28379 has been classified to as a Race Condition vulnerability or weakness.
Products Associated with CVE-2026-28379
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Affected Versions
Grafana OSS:- Version 8.2.0, <= 11.6.14 is affected.
- Version 11.6.14 and below 11.6.14+security-04 is affected.
- Version 12.0.0, <= 12.2.8 is affected.
- Version 12.2.8 and below 12.2.8+security-04 is affected.
- Version 12.3.0, <= 12.3.6 is affected.
- Version 12.3.6 and below 12.3.6+security-04 is affected.
- Version 12.4.0, <= 12.4.3 is affected.
- Version 12.4.3 and below 12.4.3+security-02 is affected.
- Version 13.0.0, <= 13.0.1 is affected.
- Version 13.0.1 and below 13.0.1+security-01 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.