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Vulnerability record · CVE-2026-8609 · published 10 July 2026

CVE-2026-8609: Grafana uncontrolled resource consumption vulnerability

Grafana · Grafana

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).

7.5 CVSS 3.1 High EPSS 0.48% · top 61.0% CWE-400 · Uncontrolled resource consumption
7.5CVSS 3.1 base score
0.48%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
13 Jul 2026Last modified by 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).

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-8609), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.