CVE-2026-8609

Published: Jul 10, 2026Modified: Jul 13, 2026

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

An unauthenticated attacker can repeatedly call Grafana's OAuth login route with unique values, causing unbounded memory growth that can eventually exhaust memory and crash the Grafana instance (denial of service).

Affected (5)

Products: Grafana: Grafana

Grafana

1 product

Grafana

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Grafana Grafana	From 11.6.0 to 11.6.15
Grafana Grafana	From 12.2.0 to 12.2.9
Grafana Grafana	From 12.3.0 to 12.3.7
Grafana Grafana	From 12.4.0 to 12.4.4
Grafana Grafana	From 13.0.0 to 13.0.2

Related CWEs

CWE-400

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (1)

https://grafana.com/security/security-advisories/cve-2026-8609

Source: security@grafana.com

Vendor Advisory

Timeline

No history available yet.