CVE-2026-42127
Grafana pre-auth DoS through arbitrarily large input to public dashboard query handler
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | grafana |
| Product | grafana enterprise |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 22, 2026 |
| Last Updated | Jun 22, 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
0 ≤ 11.6.14 0 ≤ 12.2.8 0 ≤ 12.3.6 0 ≤ 12.4.3 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