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CVE-2021-39226

CWE-287

Critical

103.8

RPS

Description

Grafana is an open source data visualization platform. In affected versions unauthenticated and authenticated users are able to view the snapshot with the lowest database key by accessing the literal paths: /dashboard/snapshot/:key, or /api/snapshots/:key. If the snapshot "public_mode" configuration setting is set to true (vs default of false), unauthenticated users are able to delete the snapshot with the lowest database key by accessing the literal path: /api/snapshots-delete/:deleteKey. Regardless of the snapshot "public_mode" setting, authenticated users are able to delete the snapshot with the lowest database key by accessing the literal paths: /api/snapshots/:key, or /api/snapshots-delete/:deleteKey. The combination of deletion and viewing enables a complete walk through all snapshot data while resulting in complete snapshot data loss. This issue has been resolved in versions 8.1.6 and 7.5.11. If for some reason you cannot upgrade you can use a reverse proxy or similar to block access to the literal paths: /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, and /api/snapshots/:key. They have no normal function and can be disabled without side eff…

Source: NVD

Signals

CVSS
9.8
Critical · v3.1
EPSS
99.93%
Probability of exploitation in the next 30 days (FIRST)
CISA KEV
In CISA KEV since Aug 2022
Fix commit
Fix commit known
Sources: MoreFixes, FreshFixes
Weakness
CWE-287
CWE-287, CWE-862
Published
5 Oct 2021
Last modified 24 Oct 2025

How to read these signals: RPS · EPSS · CISA KEV · Data sources

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Data as of 7 Oct 2026, 05:16 UK time

CVE-2021-39226 · RPS 103.8 · DevSecure Intelligence