CVE-2026-28379: Vulnerability in Grafana Grafana OSS
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.
AI Analysis
Technical Summary
This vulnerability involves a race condition in the Grafana Live component of Grafana OSS. Authenticated users with the Viewer role can exploit this flaw by sending concurrent requests that cause a fatal map access error, leading to a server crash. The crash results in denial of service requiring manual server restart. The CVSS 3.1 base score is 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H), indicating network attack vector, low attack complexity, and privileges required at the Viewer level. No official remediation or patch information is provided in the available data.
Potential Impact
The impact is a denial of service condition causing complete unavailability of the Grafana server until it is restarted. There is no impact on confidentiality or integrity. The vulnerability requires authenticated access with Viewer privileges and can be triggered remotely over the network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting Viewer role access to trusted users and monitor for unusual concurrent request patterns that could trigger the crash. Restarting the Grafana server restores service after a crash.
CVE-2026-28379: Vulnerability in Grafana Grafana OSS
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.
CVSS v3.1
Score 6.5medium
Affected software
Grafana
Grafana OSS
pkg:golang/github.com/grafana/grafanaRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition in the Grafana Live component of Grafana OSS. Authenticated users with the Viewer role can exploit this flaw by sending concurrent requests that cause a fatal map access error, leading to a server crash. The crash results in denial of service requiring manual server restart. The CVSS 3.1 base score is 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H), indicating network attack vector, low attack complexity, and privileges required at the Viewer level. No official remediation or patch information is provided in the available data.
Potential Impact
The impact is a denial of service condition causing complete unavailability of the Grafana server until it is restarted. There is no impact on confidentiality or integrity. The vulnerability requires authenticated access with Viewer privileges and can be triggered remotely over the network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting Viewer role access to trusted users and monitor for unusual concurrent request patterns that could trigger the crash. Restarting the Grafana server restores service after a crash.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GRAFANA
- Date Reserved
- 2026-02-27T07:16:12.218Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a04d641cbff5d861003f1af
Added to database: 05/13/2026, 19:51:29 UTC
Last enriched: 08/11/2026, 13:37:18 UTC
Last updated: 09/14/2026, 22:01:33 UTC
Views: 82
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