Grafana up to 12.3.0 Dashboard Permissions API permission

Summaryinfo

A vulnerability classified as critical has been found in Grafana up to 11.6.8/12.0.7/12.1.4/12.2.2/12.3.0. This affects an unknown part of the component Dashboard Permissions API. The manipulation leads to permission. This vulnerability is documented as CVE-2026-21721. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Grafana up to 11.6.8/12.0.7/12.1.4/12.2.2/12.3.0. It has been rated as critical. This issue affects some unknown processing of the component Dashboard Permissions API. The manipulation with an unknown input leads to a permission vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at grafana.com. The identification of this vulnerability is CVE-2026-21721 since 01/05/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 297049 (Linux Distros Unpatched Vulnerability : CVE-2026-21721), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 11.6.9, 12.0.8, 12.1.5, 12.2.3 or 12.3.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (297049) and CERT Bund (WID-SEC-2026-0224). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Red Hat Enterprise Linux
• Oracle Linux
• RESF Rocky Linux
• Grafana Grafana

Productinfo

Name

• Grafana

Version

• 11.6.0
• 11.6.1
• 11.6.2
• 11.6.3
• 11.6.4
• 11.6.5
• 11.6.6
• 11.6.7
• 11.6.8
• 12.0
• 12.0.0
• 12.0.1
• 12.0.2
• 12.0.3
• 12.0.4
• 12.0.5
• 12.0.6
• 12.0.7
• 12.1
• 12.1.0
• 12.1.1
• 12.1.2
• 12.1.3
• 12.1.4
• 12.2
• 12.2.0
• 12.2.1
• 12.2.2
• 12.3.0

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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