7.5
HIGH CVSS 3.1
CVE-2026-42127
Pre-authentication denial of service in the public dashboard query endpoint
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.

INFO

Published Date :

June 22, 2026, 6:16 p.m.

Last Modified :

July 10, 2026, 4:16 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-42127 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Grafana grafana
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH MITRE-CVE
CVSS 3.1 HIGH [email protected]
Solution
Limit request body size for the dashboard query endpoint to prevent memory exhaustion.
  • Implement request body size limits for the query endpoint.
  • Validate and sanitize all incoming JSON payloads.
  • Monitor memory usage under load conditions.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-42127.

URL Resource
https://grafana.com/security/security-advisories/cve-2026-42127 Broken Link
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-42127 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-42127 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-42127 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    Jul. 10, 2026

    Action Type Old Value New Value
    Added CWE CWE-400
    Changed Affected [{'vendor': 'Grafana', 'product': 'Grafana Enterprise', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '11.6.14'}, {'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '12.2.8'}, {'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '12.3.6'}, {'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '12.4.3'}, {'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '13.0.1'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Grafana', 'product': 'Grafana OSS', 'versions': [{'status': 'affected', 'version': '11.6.0', 'versionType': 'semver', 'lessThanOrEqual': '11.6.14'}, {'status': 'affected', 'version': '12.2.0', 'versionType': 'semver', 'lessThanOrEqual': '12.2.8'}, {'status': 'affected', 'version': '12.3.0', 'versionType': 'semver', 'lessThanOrEqual': '12.3.6'}, {'status': 'affected', 'version': '12.4.0', 'versionType': 'semver', 'lessThanOrEqual': '12.4.3'}, {'status': 'affected', 'version': '13.0.0', 'versionType': 'semver', 'lessThanOrEqual': '13.0.1'}], 'defaultStatus': 'unaffected'}] [{'vendor': 'Grafana', 'product': 'Grafana Enterprise', 'versions': [{'status': 'affected', 'version': '11.6.0', 'versionType': 'semver', 'lessThanOrEqual': '11.6.14'}, {'status': 'affected', 'version': '12.2.0', 'versionType': 'semver', 'lessThanOrEqual': '12.2.8'}, {'status': 'affected', 'version': '12.3.0', 'versionType': 'semver', 'lessThanOrEqual': '12.3.6'}, {'status': 'affected', 'version': '12.4.0', 'versionType': 'semver', 'lessThanOrEqual': '12.4.3'}, {'status': 'affected', 'version': '13.0.0', 'versionType': 'semver', 'lessThanOrEqual': '13.0.1'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Grafana', 'product': 'Grafana OSS', 'versions': [{'status': 'affected', 'version': '11.6.0', 'versionType': 'semver', 'lessThanOrEqual': '11.6.14'}, {'status': 'affected', 'version': '12.2.0', 'versionType': 'semver', 'lessThanOrEqual': '12.2.8'}, {'status': 'affected', 'version': '12.3.0', 'versionType': 'semver', 'lessThanOrEqual': '12.3.6'}, {'status': 'affected', 'version': '12.4.0', 'versionType': 'semver', 'lessThanOrEqual': '12.4.3'}, {'status': 'affected', 'version': '13.0.0', 'versionType': 'semver', 'lessThanOrEqual': '13.0.1'}], 'defaultStatus': 'unaffected'}]
  • Initial Analysis by [email protected]

    Jun. 30, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:* versions up to (including) 11.6.14 *cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:* versions from (including) 12.3.0 up to (including) 12.3.6 *cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:* versions from (including) 12.4.0 up to (including) 12.4.3 *cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:* versions from (including) 13.0.0 up to (including) 13.0.1 *cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:* versions from (including) 12.2.0 up to (including) 12.2.8
    Added Reference Type Grafana Labs: https://grafana.com/security/security-advisories/cve-2026-42127 Types: Broken Link
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jun. 22, 2026

    Action Type Old Value New Value
    Added CWE CWE-770
    Added SSVC {'id': 'CVE-2026-42127', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-22T17:28:16.184877Z'}
  • New CVE Received by [email protected]

    Jun. 22, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'Grafana', 'product': 'Grafana Enterprise', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '11.6.14'}, {'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '12.2.8'}, {'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '12.3.6'}, {'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '12.4.3'}, {'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '13.0.1'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Grafana', 'product': 'Grafana OSS', 'versions': [{'status': 'affected', 'version': '11.6.0', 'versionType': 'semver', 'lessThanOrEqual': '11.6.14'}, {'status': 'affected', 'version': '12.2.0', 'versionType': 'semver', 'lessThanOrEqual': '12.2.8'}, {'status': 'affected', 'version': '12.3.0', 'versionType': 'semver', 'lessThanOrEqual': '12.3.6'}, {'status': 'affected', 'version': '12.4.0', 'versionType': 'semver', 'lessThanOrEqual': '12.4.3'}, {'status': 'affected', 'version': '13.0.0', 'versionType': 'semver', 'lessThanOrEqual': '13.0.1'}], 'defaultStatus': 'unaffected'}]
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added Reference https://grafana.com/security/security-advisories/cve-2026-42127
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.