CVE-2026-19475mediumCWE-400

CVE-2026-19475: fallo de gravedad media en Grafana OSS

SQL Data Source Plugin: OOM DoS via $__timeGroup macro

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear Grafana OSS+ Monitorear Microsoft SQL Server Datasource

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 6.5epss 0.4%
An authenticated user with permission to query a SQL data source can bypass the fix for CVE-2026-33375 by injecting the timeGroup macro through a WHERE clause, which Grafana's regex-based macro parsing does not reject. Evaluating the injected macro causes uncontrolled memory consumption that can terminate the Grafana server process, resulting in a denial of service. The Microsoft SQL Server, PostgreSQL, and MySQL data sources are affected.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Productos afectados
Grafana · Grafana OSSGrafana · Microsoft SQL Server DatasourceGrafana · MySQL DatasourceGrafana · PostgreSQL Datasource
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