CVE-2026-42127 (GCVE-0-2026-42127)

Vulnerability from cvelistv5 – Published: 2026-06-22 16:31 – Updated: 2026-06-22 17:28
VLAI
Title
Grafana pre-auth DoS through arbitrarily large input to public dashboard query handler
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
Grafana Grafana Enterprise Affected: 0 , ≤ 11.6.14 (semver)
Affected: 0 , ≤ 12.2.8 (semver)
Affected: 0 , ≤ 12.3.6 (semver)
Affected: 0 , ≤ 12.4.3 (semver)
Affected: 0 , ≤ 13.0.1 (semver)
Create a notification for this product.
Grafana Grafana OSS Affected: 11.6.0 , ≤ 11.6.14 (semver)
Affected: 12.2.0 , ≤ 12.2.8 (semver)
Affected: 12.3.0 , ≤ 12.3.6 (semver)
Affected: 12.4.0 , ≤ 12.4.3 (semver)
Affected: 13.0.0 , ≤ 13.0.1 (semver)
Create a notification for this product.
Date Public
2026-05-24 15:38
Credits
Charlie Lewis
Show details on NVD website
To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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