Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2021-39226

CVE-2021-39226CRITICAL

grafana grafana — Snapshot authentication bypass in grafana

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS    %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .9993   100.0   YES

AFFECTED
  Product  Versions             Fixed
  grafana  >= 8.0.0, < 8.1.6 –  —

TIMELINE
  Aug 16  Reserved by GitHub_M
  Oct 5   Published (CNA: GitHub_M)
  Aug 25  Added to CISA KEV, remediation due 2022-09-15

CWE-287 · CNA: GitHub_M · CVSS v3.1 · 9 references · KEV due September 15, 2022

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 16, 2021	Reserved	Reserved by GitHub_M
October 5, 2021	Published	Published (CNA: GitHub_M)
August 25, 2022	KEV ADDED	Added to CISA KEV, remediation due 2022-09-15

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
grafana	grafana	—	>= 8.0.0, < 8.1.6	—

Weaknesses

CWE-287

References (9)

http://www.openwall.com/lists/oss-security/2021/10/05/4 [mailing-list, x_refsource_MLIST]
https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269 [x_refsource_MISC]
https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9 [x_refsource_CONFIRM]
https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/ [x_refsource_MISC]
https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/ [x_refsource_MISC]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/ [vendor-advisory, x_refsource_FEDORA]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/ [vendor-advisory, x_refsource_FEDORA]
https://security.netapp.com/advisory/ntap-20211029-0008/ [x_refsource_CONFIRM]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-39226 [government-resource]

Authoritative record: CVE-2021-39226 at cve.org

Vendors: grafana

Weaknesses: CWE-287

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-39226 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.