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CVE-2021-39226

Grafana Authentication Bypass Vulnerability

7.3
CVSS
99.9%
EPSS (exploit prob.)
100.0%
EPSS percentile
Yes
Actively exploited
No
Ransomware use
2022-08-25
Added
→ 0.0 pts
30-day EPSS trend

MITRE ATT&CK techniques

How this vulnerability maps to adversary behaviour, from the Center for Threat-Informed Defense's public CVE→ATT&CK mappings. Use it to check whether your detections already cover the technique.

TechniqueNameRelationship
T1190 Exploit Public-Facing Application exploitation technique
T1485 Data Destruction primary impact

Summary

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.

Affected software

Vendor: Grafana Labs  ·  Product: Grafana

Weakness types (CWE):

CWE-287

What to do

This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.

Related vulnerabilities in Grafana Labs

CVENameEPSSExploited
CVE-2021-43798 Grafana Path Traversal Vulnerability 88.5% Yes

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Sources: CISA KEV catalog · NVD · FIRST EPSS · MITRE ATT&CK® · CTID Mappings Explorer

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