CVE-2026-8609

medium Grafana
CVSS v3 Base Score
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score
0.4%
Exploitation probability in 30 days
Top 67% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Published: July 10, 2026 (58 days ago)
Last Modified: August 12, 2026
Vendor: Grafana
Source: MITRE

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).

CWE

CWE-400

Affected Products

Grafana Grafana OSS

References

🔗 grafana.com