VULNERABILITY INTELLIGENCE

CVE-2026-8609

CVSS score5.3 MEDIUM
EPSS probability0.40%
CISA KEVNot currently listed
Published2026-07-10
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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).

Weakness classification

  • security@grafana.com: CWE-400
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-400

Primary references