# CVE-2021-39226: Snapshot authentication bypass in grafana

> CVE-2021-39226: Snapshot authentication bypass in grafana. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2021-39226
Last updated: 2025-10-21T23:25:30Z

- Published: 2021-10-05 17:30 UTC · Updated: 2025-10-21 23:25 UTC · Assigner: GitHub\_M
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 99.9%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-08-25, federal due date 2022-09-15, ransomware use: Unknown
- CWE: CWE-287

## 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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- grafana: grafana

## Tracked companies

- [Grafana Cloud](https://rewindex.com/company/grafana-cloud.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-39226)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2021-39226)
- [https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269](https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269)
- [https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9](https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9)
- [https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/](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/](https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/)
- [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/](https://lists.fedoraproject.org/archives/list/package-announce%2540lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/)
- [https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/](https://lists.fedoraproject.org/archives/list/package-announce%2540lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/)
- [https://security.netapp.com/advisory/ntap-20211029-0008/](https://security.netapp.com/advisory/ntap-20211029-0008/)
- [http://www.openwall.com/lists/oss-security/2021/10/05/4](http://www.openwall.com/lists/oss-security/2021/10/05/4)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2021-39226 · Markdown: https://rewindex.com/cve/CVE-2021-39226.md · JSON: https://rewindex.com/api/v1/cves/CVE-2021-39226 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:13:37.889Z