Live › vulnerability › CVE-2021-39226
Go to dashboardGrafana has an authentication bypass that exposes dashboard snapshot data without proper access checks. An attacker can view and delete all stored snapshots, which can wipe that data entirely.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Grafana Labs Grafana | vendor | – | – |
| grafana | vendor | < 7.5.11 | 7.5.11 |
| grafana | vendor | >= 8.0.0, < 8.1.6 | 8.1.6 |
| fedoraproject fedora | vendor | = 34 | – |
| fedoraproject fedora | vendor | = 35 | – |
Unknown from the sources.
Upgrade Grafana per vendor instructions; the sources do not name the fixed version.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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 effects.
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