CVE-2026-19475
Last modified
CVE-2026-19475 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Grafana | PostgreSQL Datasource | >= 13.0.0, <= 13.0.1 |
| Grafana | MySQL Datasource | >= 13.0.0, <= 13.0.2 |
| Grafana | Grafana OSS | >= 11.6.0, <= 11.6.16; >= 12.0.0, <= 12.0.10; >= 12.1.0, <= 12.1.10; >= 12.2.0, <= 12.2.10; >= 12.3.0, <= 12.3.11; >= 12.4.0, <= 12.4.9; >= 13.0.0, <= 13.0.7; >= 13.1.0, <= 13.1.4 |
| Grafana | Microsoft SQL Server Datasource | >= 13.0.0, <= 13.0.1 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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