Vulnerability detail
Enriched intelligence for a single CVE
Critical
CVE-2021-39226
PUBLISHEDSnapshot authentication bypass in grafana
- Vendor
- grafana
- Product
- grafana
- Published
- Oct 05, 2021
- EPSS
- —
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 effects.
CVSS scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation status
Exploited in the wild
Recorded 2022-08-25 00:00:00 UTC · Source
SSVC decision points
- Exploitation
- active
- Automatable
- Yes
- Technical impact
- total
References
- https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9
- https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/
- http://www.openwall.com/lists/oss-security/2021/10/05/4
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/
- https://security.netapp.com/advisory/ntap-20211029-0008/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/
Known exploited vulnerability sources
Catalogues that list this CVE as a known exploited vulnerability.
| Source | Added |
|---|---|
| CISA | Aug 25, 2022 |
Scanner integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-39226.yaml | Apr 25, 2025 |
Timeline
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CVE ID Reserved
-
CVE Published to Public
-
Added to KEVIntel
-
Detected by Nuclei