CVE-2021-39226 — Grafana Authentication Bypass Vulnerability
Overview
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.
Vulnerability details
- CVE ID
- CVE-2021-39226
- Vulnerability
- Grafana Authentication Bypass Vulnerability
- Vendor
- Grafana Labs
- Affected products
- Grafana Labs: Grafana
- Severity
- HIGH
- Exploitation status
- Actively exploited in the wild (CISA KEV)
- Published
- 2022-08-25
Remediation guidance
CVE-2021-39226 is in CISA's Known Exploited Vulnerabilities (KEV) catalog — U.S. federal civilian agencies are required to remediate it under Binding Operational Directive 22-01. Treat it as a priority for every environment.
Apply the vendor's official security update for Grafana Labs the affected product as soon as possible. Where a patch is unavailable, apply vendor mitigations or isolate/segment exposed systems.
Hunt for indicators of compromise tied to this vulnerability and confirm logging/EDR coverage on affected assets.
Authoritative references
Remediate CVE-2021-39226 — and stay ahead of the next one
CVE-2021-39226 is listed in the CISA KEV catalog as actively exploited — treat remediation as urgent. Scan your domain free to see whether CVE-2021-39226 and other Grafana Labs issues affect you and get a prioritized remediation report (full report from ₹999) — or stream the full feed of 1,600+ actively-exploited CVEs straight into your SOC.
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