SQL Injection Vulnerability in Grafana Affecting Microsoft SQL Server, PostgreSQL, and MySQL
CVE-2026-19475

6.5MEDIUM

Key Information:

Vendor

Grafana
Status
Postgresql Datasource
Mysql Datasource
Grafana Oss
Microsoft Sql Server Datasource
Vendor
CVE Published:
2 September 2026

What is CVE-2026-19475?

An authenticated user with permission to query a SQL data source can exploit a vulnerability in Grafana by injecting the timeGroup macro through a WHERE clause. This improperly handled input permits the bypass of existing security measures, leading to uncontrolled memory consumption that may crash the Grafana server process, ultimately resulting in a Denial of Service for users accessing the affected data sources, including Microsoft SQL Server, PostgreSQL, and MySQL.

Affected Version(s)

Grafana OSS 11.6.0 <= 11.6.16

Grafana OSS 12.0.0 <= 12.0.10

Grafana OSS 12.1.0 <= 12.1.10

References

https://grafana.com/security/security-advisories/cve-2026...
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

khanmarshal (Researcher)
.