PT-2026-57212 · Grafana · Grafana Oss

Cyberjoker · Published 2026-07-10 · Updated 2026-07-10 · CVE-2026-8609

Mitre

CVSS v3.1

5.3

Medium

Base vector

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

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).

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2026-8609

Affected Products

Grafana Oss

References · 2

• https://grafana.com/security/security-advisories/cve-2026-8609 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-8609 · Security Note