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WEB APPLICATION VULNERABILITIES Standard & Premium

Grafana Allocation of Resources Without Limits or Throttling Vulnerability (CVE-2026-42127)

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.

Remediation

References

CVE-2026-42127

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Severity

High

Classification

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

Tags

Missing Update Known Vulnerabilities CWE-770 CVE-2026-42127

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