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Vulnerability record · CVE-2026-42127 · published 22 June 2026

CVE-2026-42127: Grafana uncontrolled resource consumption vulnerability

Grafana · Grafana

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.

7.5 CVSS 3.1 High EPSS 0.43% · top 64.9% CWE-400 · Uncontrolled resource consumptionCWE-770 · Allocation without limits
7.5CVSS 3.1 base score
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
10 Jul 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://grafana.com/security/security-advisories/cve-2026-42127 Broken Link

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Source: NIST National Vulnerability Database (record CVE-2026-42127), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.