Memory exhaustion denial of service in SQL Expressions

published 2026-11-11 19h ago modified 2026-11-11 19h ago also EUVD-2026-123540

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: —; no EPSS score yet
public exploits: 0; none known

A user with the Viewer role can make Grafana allocate an unbounded amount of memory, and crash it, with a single SQL Expression query that casts a value to a very large BINARY length (memory allocation with excessive size value).

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CVSS scores

assigned by	version	score	vector
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Grafana Grafana OSS
Grafana Grafana Enterprise

Classification

Weakness

CWE-789 Memory Allocation with Excessive Size Value
CWE-1284 Improper Validation of Specified Quantity in Input
CWE-400 Uncontrolled Resource Consumption

References

grafana.com /security/security-advisories/cve-2026-107509
vendor-advisory

Sources

CVE List CVE-2026-107509
NVD CVE-2026-107509

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