CVE-2026-42127

high

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.

References

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-38309

Details

Source: Mitre, NVD

Published: 2026-06-22

Updated: 2026-07-10

Named Vulnerability: GO-2026-6541Named Vulnerability: GHSA-3w66-95m3-8jxg

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.00432