Improper Authorization in Grafana - CVE-2026-21724
Published: March 31, 2026
Vulnerability identifier: #VU124709
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-21724
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Grafana Labs
Affected software:
Grafana
Grafana
Detailed vulnerability description
The vulnerability allows a remote user to modify protected webhook URLs.
The vulnerability exists due to improper access control in the Provisioning Contact Points API when handling API requests. A remote user can send a specially crafted request to modify protected webhook URLs.
Successful exploitation allows modification of protected contact points without the required alert.notifications.receivers.protected:write permission.
How to mitigate CVE-2026-21724
Install security update from vendor's website.