--- title: "CVE-2021-39226: Snapshot authentication bypass in grafana | CubePath" description: "Grafana is an open source data visualization platform. In affected versions unauthenticated and authenticated users are able to view the snapshot…" language: en source: https://cubepath.com/security/cve/CVE-2021-39226 --- # CVE-2021-39226: Snapshot authentication bypass in grafana | CubePath ## 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. Official description from the CVE record, published by GitHub\_M. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2021-39226) ## Key data ### CVSS 3.1 Critical 9.8 Score published by GitHub\_M in the CVE record. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | None | No account or privileges are needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.99933 (99.9% probability) Percentile 99.97% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog Grafana Authentication Bypass Vulnerability Added to the catalog Aug 25, 2022 Federal due date Sep 15, 2022 ### CISA assessment as of Feb 6, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable yes Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-287](https://cwe.mitre.org/data/definitions/287.html) Improper Authentication ## Affected products Products listed in the CVE record, as the CNA published them. - grafana - affected: >= 8.0.0, < 8.1.6 - affected: < 7.5.11 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [github.com/grafana/grafana/security/advisories/GHSA-69j6-29…](https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9) - [github.com/grafana/grafana/commit/2d456a6375855364d098ede37…](https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269) - [grafana.com/docs/grafana/latest/release-notes/release-notes…](https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/) - [grafana.com/docs/grafana/latest/release-notes/release-notes…](https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/) - [\[oss-security\] 20211005 CVE-2021-39226 Grafana snapshot authentication bypass](http://www.openwall.com/lists/oss-security/2021/10/05/4) (openwall.com) mailing-list - [FEDORA-2021-dd83dc8b0b](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/) (lists.fedoraproject.org) vendor-advisory - [security.netapp.com/advisory/ntap-20211029-0008](https://security.netapp.com/advisory/ntap-20211029-0008/) - [FEDORA-2021-01588ab0bf](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/) (lists.fedoraproject.org) vendor-advisory ## Timeline 1. ID reserved Aug 16, 2021 2. Record published Oct 5, 2021 3. Added to CISA KEV Aug 25, 2022 4. Record last updated Oct 21, 2025 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:27 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)