Viewer-triggered race condition in Grafana Live leads to complete server crash

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Summary

CVECVE-2026-28379
StatePUBLISHED
AssignerGRAFANA
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-13 20:16:19 UTC
Updated2026-05-13 20:16:19 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Grafana Grafana OSS affected 8.2.0 11.6.14 semver OnPrem
CNA Grafana Grafana OSS affected 11.6.14 11.6.14+security-04 custom OnPrem
CNA Grafana Grafana OSS affected 12.0.0 12.2.8 semver OnPrem
CNA Grafana Grafana OSS affected 12.2.8 12.2.8+security-04 custom OnPrem
CNA Grafana Grafana OSS affected 12.3.0 12.3.6 semver OnPrem
CNA Grafana Grafana OSS affected 12.3.6 12.3.6+security-04 custom OnPrem
CNA Grafana Grafana OSS affected 12.4.0 12.4.3 semver OnPrem
CNA Grafana Grafana OSS affected 12.4.3 12.4.3+security-02 custom OnPrem
CNA Grafana Grafana OSS affected 13.0.0 13.0.1 semver OnPrem
CNA Grafana Grafana OSS affected 13.0.1 13.0.1+security-01 custom OnPrem

References

ReferenceSourceLinkTags
grafana.com/security/security-advisories/cve-2026-28379 [email protected] grafana.com
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