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CVE-2021-39226: Grafana Authentication Bypass Vulnerability

criticalknown exploitedpublic exploitCVE-2021-39226
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Grafanaproduct: GrafanaAuthentication bypass
What
An authentication bypass vulnerability allows users to view and delete all snapshot data, risking complete data loss.
Who is affected
Users of Grafana with access to snapshot data.
Urgency
Immediate remediation is required due to active exploitation and critical severity.
Action
Upgrade to the latest version of Grafana to fix the authentication bypass.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-08-25
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-39226

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-39226coverage & exploitation statusNVD · CVE.org

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