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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-42127

Pre-authentication denial of service in the public dashboard query endpoint

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Status
Published
Published
Updated
Assigning organization
GRAFANA

Description

The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated attackers to trigger excessive memory allocation by sending arbitrarily large JSON payloads. This can lead to denial of service through memory exhaustion. No valid dashboard access token or authentication is required to exploit this vulnerability.

Affected products

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

Grafana Grafana Enterprise

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

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