Privilege Escalation via Dashboard Permissions API in Grafana

Publication date: 2026-01-27

Last updated on: 2026-06-30

Assigner: Grafana Labs

Description

The dashboard permissions API does not verify the target dashboard scope and only checks the dashboards.permissions:* action. As a result, a user who has permission management rights on one dashboard can read and modify permissions on other dashboards. This is an organization‑internal privilege escalation.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-01-27

Last Modified

2026-06-30

Generated

2026-07-06

AI Q&A

2026-01-27

EPSS Evaluated

2026-07-05

NVD

CVE-2026-21721

EUVD

EUVD-2026-4820

Affected Vendors & Products

Vendor	Product	Version / Range
grafana	grafana	11.6.9
grafana	grafana	12.0.8
grafana	grafana	12.1.5
grafana	grafana	12.2.3
grafana	grafana	12.3.0
grafana	grafana	12.3.1
grafana	grafana	From 10.2.0 (inc) to 11.6.9 (exc)
grafana	grafana	From 12.0.0 (inc) to 12.0.8 (exc)
grafana	grafana	From 12.1.0 (inc) to 12.1.5 (exc)
grafana	grafana	From 12.2.0 (inc) to 12.2.3 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
CWE-639	The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

Executive Summary

This vulnerability occurs because the dashboard permissions API does not verify the specific dashboard scope when managing permissions. Instead, it only checks if a user has the general dashboards.permissions:* action. Consequently, a user with permission management rights on one dashboard can read and modify permissions on other dashboards within the organization, leading to an internal privilege escalation.

Impact Analysis

This vulnerability can allow a user with permission management rights on a single dashboard to escalate their privileges and access or modify permissions on other dashboards within the organization. This could lead to unauthorized access, modification of sensitive data, and potential disruption of dashboard configurations.

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