CVE-2021-39226VulnerabilityPublished 08/25/2022Updated 10/24/2026
CVE-2021-39226: Grafana Authentication Bypass Vulnerability
Affects Grafana Labs GrafanaSource CISA KEV
Severity
HighNo CVSS score published yet
- Exploitation
Actively exploited – in CISA KEV since 08/25/2022
- KEV deadline
- 09/15/2022
- EPSS
- 99.9% chance of exploitation in 30 days – higher than 99% of CVEs
What to do
CISA required action
Apply updates per vendor instructions.
Description
Grafana contains an authentication bypass vulnerability that allows authenticated and unauthenticated users to view and delete all snapshot data, potentially resulting in complete snapshot data loss.