Improper access control in Grafana - CVE-2026-21727
Published: February 3, 2026
Vulnerability identifier: #VU122265
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-21727
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to read and delete legacy correlation data belonging to another organization.
The vulnerability exists due to a cross-tenant isolation vulnerability in the Correlations feature affecting legacy correlation records. A remote user with datasource management privileges can read and permanently delete legacy correlation data belonging to another organization.
Affected software
Grafana
How to mitigate CVE-2026-21727
Install updates from vendor's website.
Grafana - addressed in versions 11.6.11, 12.0.9, 12.1.6, 12.2.4, 12.3.2