CVE-2026-42127
Pre-authentication denial of service in the public dashboard query endpoint
CVSS Score
7.5
EPSS Score
0.4%
EPSS Percentile
35th
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.
| CWE | CWE-400 |
| Vendor | grafana |
| Product | grafana enterprise |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 22, 2026 |
| Last Updated | Jul 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Grafana / Grafana Enterprise
11.6.0 ≤ 11.6.14 12.2.0 ≤ 12.2.8 12.3.0 ≤ 12.3.6 12.4.0 ≤ 12.4.3 13.0.0 ≤ 13.0.1
Grafana / Grafana OSS
11.6.0 ≤ 11.6.14 12.2.0 ≤ 12.2.8 12.3.0 ≤ 12.3.6 12.4.0 ≤ 12.4.3 13.0.0 ≤ 13.0.1
References
Credits
Charlie Lewis