CVE-2026-21721Network attack vectorHinoki check available

Cross-dashboard privilege escalation via unchecked target scope

Published Jan 27, 2026 · Updated Jan 27, 2026

Authorization bypass in Grafana and Grafana Enterprise allows remote authenticated users to read and alter permissions across dashboards. The dashboard permissions API checks the dashboards.permissions:* action but fails to validate that the requested dashboard matches the caller’s authorized scope. Permission-management rights on one dashboard are sufficient to expose and change permissions on other dashboards within the organization.

CVSS severity8.1
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authorization bypass in Grafana and Grafana Enterprise allows remote authenticated users to read and alter permissions across dashboards. The dashboard permissions API checks the dashboards.permissions:* action but fails to validate that the requested dashboard matches the caller’s authorized scope. Permission-management rights on one dashboard are sufficient to expose and change permissions on other dashboards within the organization.

The record

CVE
CVE-2026-21721
Published
Jan 27, 2026
Updated
Jan 27, 2026
Vendor
Grafana Labs
Product
Grafana
Classifications
CWE-863, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.2.0 <11.6.9
  2. Affected versionversion=12.0.0 <12.0.8
  3. Affected versionversion=12.1.0 <12.1.5
  4. Affected versionversion=12.2.0 <12.2.3
  5. Affected versionversion=12.3.0 <12.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grafana Labs · Grafanaversion=10.2.0 <11.6.9; version=12.0.0 <12.0.8; version=12.1.0 <12.1.5; version=12.2.0 <12.2.3; version=12.3.0 <12.3.1
Grafana Labs · Grafana Enterpriseversion=10.2.0 <11.6.9; version=12.0.0 <12.0.8; version=12.1.0 <12.1.5; version=12.2.0 <12.2.3; version=12.3.0 <12.3.1

Published CVSS scores

8.1Grafana LabsCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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