Grafana Improper Authentication Vulnerability - CVE-2021-39226

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 quotpublic_modequot 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 quotpublic_modequot 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.