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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-19475

SQL Data Source Plugin: OOM DoS via $__timeGroup macro

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Status
Published
Published
Updated
Assigning organization
GRAFANA

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Grafana PostgreSQL Datasource

Default version status: unaffected

  • 13.0.0 to ≤ 13.0.1affected

Grafana MySQL Datasource

Default version status: unaffected

  • 13.0.0 to ≤ 13.0.2affected

Grafana Grafana OSS

Default version status: unaffected

  • 11.6.0 to ≤ 11.6.16affected
  • 12.0.0 to ≤ 12.0.10affected
  • 12.1.0 to ≤ 12.1.10affected
  • 12.2.0 to ≤ 12.2.10affected
  • 12.3.0 to ≤ 12.3.11affected
  • 12.4.0 to ≤ 12.4.9affected
  • 13.0.0 to ≤ 13.0.7affected
  • 13.1.0 to ≤ 13.1.4affected

Grafana Microsoft SQL Server Datasource

Default version status: unaffected

  • 13.0.0 to ≤ 13.0.1affected

References