SQL Data Source Plugin: OOM DoS via $__timeGroup macro

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-19475
StatePUBLISHED
AssignerGRAFANA
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-02 16:17:15 UTC
Updated2026-09-03 16:37:52 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.004010000 probability, percentile 0.334330000 (date 2026-09-07)

Problem Types: CWE-400 | CWE-400 CWE-400 Uncontrolled Resource Consumption

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Grafana PostgreSQL Datasource affected 13.0.0 13.0.1 semver Not specified
CNA Grafana MySQL Datasource affected 13.0.0 13.0.2 semver Not specified
CNA Grafana Grafana OSS affected 11.6.0 11.6.16 semver Not specified
CNA Grafana Grafana OSS affected 12.0.0 12.0.10 semver Not specified
CNA Grafana Grafana OSS affected 12.1.0 12.1.10 semver Not specified
CNA Grafana Grafana OSS affected 12.2.0 12.2.10 semver Not specified
CNA Grafana Grafana OSS affected 12.3.0 12.3.11 semver Not specified
CNA Grafana Grafana OSS affected 12.4.0 12.4.9 semver Not specified
CNA Grafana Grafana OSS affected 13.0.0 13.0.7 semver Not specified
CNA Grafana Grafana OSS affected 13.1.0 13.1.4 semver Not specified
CNA Grafana Microsoft SQL Server Datasource affected 13.0.0 13.0.1 semver Not specified

References

ReferenceSourceLinkTags
grafana.com/security/security-advisories/cve-2026-19475 [email protected] grafana.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: khanmarshal (Researcher) (en)

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