CVE-2026-42127

published 2026-06-22

CVE-2026-42127: The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated attackers to trigger excessive memory…

Priority P3 46 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

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

11 ranges

Vendor	Product	Version range	Fixed in
grafana	grafana	<= 11.6.14	—
grafana	grafana	12.2.0 – 12.2.8	—
grafana	grafana	12.3.0 – 12.3.6	—
grafana	grafana	12.4.0 – 12.4.3	—
grafana	grafana	13.0.0 – 13.0.1	—
grafana	grafana_enterprise	<= 11.6.14	—
grafana	grafana_oss	11.6.0 – 11.6.14	—
grafana	grafana_oss	12.2.0 – 12.2.8	—
grafana	grafana_oss	12.3.0 – 12.3.6	—
grafana	grafana_oss	12.4.0 – 12.4.3	—
grafana	grafana_oss	13.0.0 – 13.0.1	—

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