PT-2026-51363 · Grafana · Grafana Enterprise+1

Charlie Lewis · Published 2026-06-22 · Updated 2026-06-22 · CVE-2026-42127

Mitre

CVSS v3.1

7.5

High

Base vector

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.

Fix

Related Identifiers

CVE-2026-42127

Affected Products

Grafana Enterprise

Grafana Oss

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-42127 · Security Note
• https://grafana.com/security/security-advisories/cve-2026-42127 · Vendor Advisory