Grafana OSS up to 11.6.13/12.1.9/12.2.7/12.3.5 Provisioning Contact Points API authorization

Summaryinfo

A vulnerability has been found in Grafana OSS up to 11.6.13/12.1.9/12.2.7/12.3.5 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Provisioning Contact Points API. Performing a manipulation results in authorization. This vulnerability is reported as CVE-2026-21724. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Grafana OSS up to 11.6.13/12.1.9/12.2.7/12.3.5. This affects an unknown part of the component Provisioning Contact Points API. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been discovered in Grafana OSS where an authorization bypass in the provisioning contact points API allows users with Editor role to modify protected webhook URLs without the required alert.notifications.receivers.protected:write permission.

It is possible to read the advisory at grafana.com. This vulnerability is uniquely identified as CVE-2026-21724 since 01/05/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 321072 (openSUSE 16 Security Update : grafana (openSUSE-SU-2026:20940-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 11.6.14, 12.1.10, 12.2.8 or 12.3.6 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (321072) and CERT Bund (WID-SEC-2026-0886). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Grafana Grafana

Productinfo

Vendor

• Grafana

Name

• OSS

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
• 11.6.9
• 11.6.10
• 11.6.11
• 11.6.12
• 11.6.13
• 12.1.0
• 12.1.1
• 12.1.2
• 12.1.3
• 12.1.4
• 12.1.5
• 12.1.6
• 12.1.7
• 12.1.8
• 12.1.9
• 12.2.0
• 12.2.1
• 12.2.2
• 12.2.3
• 12.2.4
• 12.2.5
• 12.2.6
• 12.2.7
• 12.3.0
• 12.3.1
• 12.3.2
• 12.3.3
• 12.3.4
• 12.3.5

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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