# CVE-2026-21721: Dashboard Permissions Scope Bypass Enables Cross‑Dashboard Privilege Escalation

> CVE-2026-21721: Dashboard Permissions Scope Bypass Enables Cross‑Dashboard Privilege Escalation. CVSS 8.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-21721
Last updated: 2026-08-27T17:22:33Z

- Published: 2026-01-27 09:07 UTC · Updated: 2026-08-27 17:22 UTC · Assigner: GRAFANA
- CVSS: 8.1 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- EPSS: 0.72%, 54th percentile (scored 2026-10-25)
- CISA KEV: no

## 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.

## Affected vendors and products

- Grafana: grafana/grafana
- Grafana: grafana/grafana-enterprise
- Red Hat: Multicluster Global Hub
- Red Hat: Red Hat Advanced Cluster Management for Kubernetes 2.11
- Red Hat: Red Hat Advanced Cluster Management for Kubernetes 2.12
- Red Hat: Red Hat Advanced Cluster Management for Kubernetes 2.13
- Red Hat: Red Hat Ceph Storage 5
- Red Hat: Red Hat Ceph Storage 6
- Red Hat: Red Hat Ceph Storage 8
- Red Hat: Red Hat Enterprise Linux 10
- Red Hat: Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat: Red Hat Enterprise Linux 8
- Red Hat: Red Hat Enterprise Linux 9
- Red Hat: Red Hat Enterprise Linux 9.6 Extended Update Support

## Tracked companies

- [Grafana Cloud](https://rewindex.com/company/grafana-cloud.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-21721)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-21721)
- [https://grafana.com/security/security-advisories/cve-2026-21721](https://grafana.com/security/security-advisories/cve-2026-21721)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-21721 · Markdown: https://rewindex.com/cve/CVE-2026-21721.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-21721 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:13:43.343Z