Auth bypass in Grafana
CVE-2026-21724
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Grafana
- Grafana Oss — versions 12.3.1, 12.2.2, 12.1.5
Weakness classification (CWE)
References
- grafana.com/security/security-advisories/cve-2026-21724 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-21724?
- CVE-2026-21724 is a medium-severity vulnerability in Grafana, classified under Improper Authorization. CVSS score: 5.4/10. Published 2026-03-26.
- How severe is CVE-2026-21724?
- Medium severity. CVSS v3 base score is 5.4 out of 10.