CVE-2026-21721

Name: CVE-2026-21721
Creator: NVD / NIST
Published: 2026-01-27T09:15:48.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2026-21721 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. The dashboard permissions API does not verify the target dashboard scope and only checks the dashboards.permissions:* action. As a result, a user who has permission management rights on one dashboard can read and modify permissions on other dashboards. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

The dashboard permissions API does not verify the target dashboard scope and only checks the dashboards.permissions:* action. As a result, a user who has permission management rights on one dashboard can read and modify permissions on other dashboards. This is an organization‑internal privilege escalation.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.39%

30.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Grafana	Grafana	>= 10.2.0, < 11.6.9
Grafana	Grafana	>= 12.0.0, < 12.0.8
Grafana	Grafana	>= 12.1.0, < 12.1.5
Grafana	Grafana	>= 12.2.0, < 12.2.3
Grafana	Grafana	11.6.9
Grafana	Grafana	12.0.8
Grafana	Grafana	12.1.5
Grafana	Grafana	12.2.3
Grafana	Grafana	12.3.0
Grafana	Grafana	12.3.1

References

https://grafana.com/security/security-advisories/cve-2026-21721Vendor Advisory

Timeline

Published: Jan 27, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-21721?

How severe is CVE-2026-21721?

CVE-2026-21721 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2026-21721?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-21721?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST