VulnerabilityModified
CVE-2026-21721
This is an organization‑internal privilege escalation.
HIGH 8.1EPSS 0.67%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.67% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-863, CWE-639
- Affected
- grafana/grafana
- Source
- security@grafana.com
References
- https://grafana.com/security/security-advisories/cve-2026-21721Vendor 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.