CVE-2026-8609 Details
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).
A denial-of-service vulnerability has been identified in Grafana's OAuth login route. An unauthenticated attacker can exploit this issue by repeatedly sending requests with unique values, leading to unbounded memory growth. This excessive memory usage can eventually exhaust available resources, causing the Grafana instance to crash.
Users can upgrade to Grafana versions 11.6.15, 12.2.9, 12.3.7, 12.4.4, or 13.0.2 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 10, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://grafana.com/security/security-advisories/cve-2026-8609 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | CISA-ADP |
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| grafana grafana | >= 11.6.0, < 11.6.15 >= 12.2.0, < 12.2.9 >= 12.3.0, < 12.3.7 >= 12.4.0, < 12.4.4 >= 13.0.0, < 13.0.2 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 13, 2026 | Initial Analysis | [email protected] |
| Jul 10, 2026 | CVE Modified | CISA-ADP |
| Jul 10, 2026 | New CVE Received | [email protected] |