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).

Remediation

References

CVE-2026-8609

Related Vulnerabilities

Ruby CVE-2019-15845 Vulnerability (CVE-2019-15845)

WordPress Plugin Fancy Gallery Cross-Site Scripting (1.5.12)

MongoDb Uncontrolled Recursion Vulnerability (CVE-2026-1849)

PostgreSQL Numeric Errors Vulnerability (CVE-2010-0733)

Apache HTTP Server Improper Input Validation Vulnerability (CVE-2017-15715)

Severity

High

Classification

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

Tags

Missing Update Known Vulnerabilities CWE-400 CVE-2026-8609