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Vulnerability record · CVE-2026-21721 · published 27 January 2026

CVE-2026-21721: Grafana incorrect authorization vulnerability

Grafana · Grafana

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.

8.1 CVSS 3.1 High EPSS 0.74% · top 47.4% CWE-863 · Incorrect authorizationCWE-639 · Insecure direct object reference
8.1CVSS 3.1 base score
0.74%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
11References
20 Jul 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://grafana.com/security/security-advisories/cve-2026-21721 Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:2914
https://access.redhat.com/errata/RHSA-2026:2920
https://access.redhat.com/errata/RHSA-2026:3078
https://access.redhat.com/errata/RHSA-2026:3529
https://access.redhat.com/errata/RHSA-2026:41064
https://access.redhat.com/errata/RHSA-2026:5633
https://access.redhat.com/errata/RHSA-2026:8229
https://access.redhat.com/security/cve/CVE-2026-21721
https://bugzilla.redhat.com/show_bug.cgi?id=2433242
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-21721.json

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Source: NIST National Vulnerability Database (record CVE-2026-21721), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.