CVE-2026-28379 Viewer-triggered race condition in Grafana Live leads to complete server crash

What is CVE-2026-28379?

CVE-2026-28379 is a medium-severity vulnerability in Grafana Grafana, published on 13 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-362

Which versions are affected by CVE-2026-28379?

1 open source package ship an affected version, including grafana. It affects 1 product.

Products include Grafana Grafana.

How do I fix CVE-2026-28379?

Upgrade grafana to a fixed version for your release line: 11.6.14, 12.2.8, 12.3.6 or 12.4.3.

Is CVE-2026-28379 being exploited?

There is no known exploitation of CVE-2026-28379 in the wild and no public exploit code.

Other vulnerabilities in Grafana Grafana

• CVE-2021-43798 Grafana Path Traversal Exploited High 7.5
• CVE-2025-41115 Incorrect privilege assignment Critical 10.0
• CVE-2022-39328 Grafana vulnerable to race condition allowing privilege escalation Critical 9.8
• CVE-2022-28660 Auth bypass in n/a Critical 9.8
• CVE-2022-26148 Information disclosure in n/a Critical 9.8

All Grafana Grafana vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-grafana-2026-28379, GHSA-5699-ppr6-8h44, MINI-3gff-r3cf-c457, MINI-4g8w-4jh2-mc89, MINI-54rj-vhf8-x596, MINI-6qhv-8476-p68x and 13 more.