CVE-2026-42127: Pre-authentication denial of service in the public dashboard query endpoint
Grafana · Grafana Enterprise
Vendor fix available · Affected: Grafana Enterprise · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 38% of scored CVEs
DescriptionCVE.org
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.
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Grafana · Grafana Enterprisefrom 11.6.0 up to and including 11.6.14; from 12.2.0 up to and including 12.2.8; from 12.3.0 up to and including 12.3.6; from 12.4.0 up to and including 12.4.3; from 13.0.0 up to and including 13.0.1
- Grafana · Grafana OSSfrom 11.6.0 up to and including 11.6.14; from 12.2.0 up to and including 12.2.8; from 12.3.0 up to and including 12.3.6; from 12.4.0 up to and including 12.4.3; from 13.0.0 up to and including 13.0.1
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-42127 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.