CVE-2026-21721

Advisory lineage Upstream: 0 Downstream: 9
Analyzed
Published: 27 Jan 2026, 09:07
Last modified:13 May 2026, 19:28

Vulnerability Summary

Overall Risk (default)
medium
32/100
CVSS Score
8.1 HIGH
v3.1 (cve.org)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

27 Jan 2026, 09:07
Published
Vulnerability first disclosed
13 May 2026, 19:28
Last Modified
Vulnerability information updated

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 Metrics

  • v3.1•HIGH•Score: 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS Trends

Current EPSS score: 0.02%• Percentile: 5%

Techniques & Countermeasures

  • CWE-863•Incorrect Authorization

    The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Affected Systems

  • grafana•grafana

    ≥ 10.2.0, < 11.6.9 | ≥ 12.0.0, < 12.0.8 | ≥ 12.1.0, < 12.1.5 | ≥ 12.2.0, < 12.2.3 | 11.6.9 | 12.0.8 | 12.1.5 | 12.2.3 | 12.3.0 | 12.3.1

  • grafana•grafana/grafana

    ≥ 12.3.0, < 12.3.1 | ≥ 12.2.0, < 12.2.3 | ≥ 12.1.0, < 12.1.5 | ≥ 12.0.0, < 12.0.8 | ≥ 10.2.0, < 11.6.9

  • grafana•grafana/grafana-enterprise

    ≥ 10.2.0, < 11.6.9 | ≥ 12.0.0, < 12.0.8 | ≥ 12.1.0, < 12.1.5 | ≥ 12.2.0, < 12.2.3 | ≥ 12.3.0, < 12.3.1

References (2)