high Known exploitedREV. 01

CVE-2021-39226Grafana — Unauthenticated Access to Dashboard Snapshots

Grafana serves dashboard snapshots to anyone who guesses their key, so unauthenticated visitors can read whatever the earliest snapshots happen to contain.

YOUR NEXT MOVE

Upgrade Grafana to a patched release, and review which snapshots were reachable while the instance was exposed.

Read the risk

THE VITAL STATS
CVSS score
7.3/ 10
CVSS v3.1
EPSS probability
100%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2021-10-05
Added to KEV
2022-08-25
Exploit published
Yes
Confidence
high
Kill chain
discovery
MITRE ATT&CK
T1190
Severity
high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attacker needsNetwork access to the Grafana instance

Behind the card

5 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-08-07scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-08-07scrty-crds-pipeline/0.1high
epssapi.first.org2026-08-07scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-08-07claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2021-39226 · CRDS 0.1 · Issued 2026-08-07