Security Advisory

CVE-2026-19475

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-02 15:56:33

Last updated 2026-09-03 08:08:02

Assigner GRAFANA

CVSS score 6.5

State PUBLISHED

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.

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