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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-8609

Pre-authentication denial of service via the OAuth login route

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Status
Published
Published
Updated
Assigning organization
GRAFANA

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).

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Grafana Grafana OSS

Default version status: unaffected

  • 11.6.0 to ≤ 11.6.14affected
  • 12.2.0 to ≤ 12.2.8affected
  • 12.3.0 to ≤ 12.3.6affected
  • 12.4.0 to ≤ 12.4.3affected
  • 13.0.0 to ≤ 13.0.1affected

References