CVE-2026-21721
High
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.
SeverityHigh
CVSS8.1
Exploit probability—
Product
Grafana
PublishedJan 27, 2026
First seenJan 27, 2026
How to fix
Update
- grafana grafana11.6.9, 12.0.8, 12.1.5, 12.2.3 or later
Vendor advisories
- grafana.com/security/security-advisories/cve-2026-21721
- access.redhat.com/errata/RHSA-2026:3078
- access.redhat.com/errata/RHSA-2026:2914
- access.redhat.com/errata/RHSA-2026:3529
- access.redhat.com/errata/RHSA-2026:2920
- access.redhat.com/errata/RHSA-2026:41064
- access.redhat.com/errata/RHSA-2026:5633
- access.redhat.com/errata/RHSA-2026:8229
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| grafana grafana | 10.2.0 ≤ v < 11.6.9, 12.0.0 ≤ v < 12.0.8, 12.1.0 ≤ v < 12.1.5, 12.2.0 ≤ v < 12.2.3, 11.6.9, 12.0.8, 12.1.5, 12.2.3, 12.3.0, 12.3.1 | 11.6.9, 12.0.8, 12.1.5, 12.2.3 |
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