All vulnerabilities
CVE-2021-39226BIT-grafana-2021-39226GHSA-69j6-29vr-p3j9

Grafana Authentication Bypass Vulnerability

Grafana Labs GrafanaGoApplications & CMS
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 25 Aug 2022CISA KEV
Exploit odds (EPSS)99.9%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in7.5.11Also 8.1.6GitHub
Federal deadline15 Sep 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

  • 7.5.11Grafana snapshot service, goGitHub
  • 8.1.6Grafana snapshot service, goGitHub
  • 7.5.11github.com/grafana/grafana, GoOSVgo get github.com/grafana/grafana@v7.5.11
  • 8.1.6github.com/grafana/grafana, GoOSVgo get github.com/grafana/grafana@v8.1.6

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 5 Oct 2021, 17:30 UTCPublishedCVE List
  2. 25 Aug 2022Added to CISA KEVCISA KEV

Public exploit code and templates 1

  • Scanner templateGrafana Snapshot - Authentication BypassNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

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.

Text from CVE List

Affected versions 5

  • grafanaaffected: >= 8.0.0, < 8.1.6CVE List
  • grafanaaffected: < 7.5.11CVE List
  • Grafana snapshot service, go<= 8.1.5GitHub
  • github.com/grafana/grafana, Gofrom first release, fixed in 7.5.11OSV
  • github.com/grafana/grafana, Gofrom 8.0.0, fixed in 8.1.6OSV

References 10