CVE-2026-21727

--- title: Cross-Tenant Legacy Correlation Disclosure and Deletion draft: false hero: image: /static/img/heros/hero-legal2.svg content: "# Cross-Tenant Legacy Correlation Disclosure and Deletion" date: 2026-01-29 product: Grafana severity: Low cve: CVE-2026-21727 cvss_score: "3.3" cvss_vector: "CVSS:3.3/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N" fixed_versions: - ">=11.6.11 >=12.0.9 >=12.1.6 >=12.2.4" --- A cross-tenant isolation vulnerability was found in Grafana’s Correlations feature affecting legacy correlation records. Due to a backward compatibility condition allowing org_id = 0 records to be returned across organizations, a user with datasource management privileges could read and permanently delete legacy correlation data belonging to another organization. This issue affects correlations created prior to Grafana 10.2 and is fixed in >=11.6.11, >=12.0.9, >=12.1.6, and >=12.2.4. Thanks to Gyu-hyeok Lee (g2h) for reporting this vulnerability.

CVSS v3 3.3 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 0.7 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://grafana.com/security/security-advisories/cve-2026-21727	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:grafana:grafana::::::::
	cpe:2.3:a:grafana:grafana::::::::
	cpe:2.3:a:grafana:grafana::::::::
	cpe:2.3:a:grafana:grafana::::::::
	cpe:2.3:a:grafana:grafana::::::::

History

20 Apr 2026, 20:08

Type	Values Removed	Values Added
References	~~() https://grafana.com/security/security-advisories/cve-2026-21727 -~~	() https://grafana.com/security/security-advisories/cve-2026-21727 - Vendor Advisory
CPE		cpe:2.3:a:grafana:grafana::::::::
First Time		Grafana Grafana grafana

20 Apr 2026, 19:16

Type	Values Removed	Values Added
CWE		CWE-732

15 Apr 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-15 20:16

Updated : 2026-04-20 20:08

NVD link : CVE-2026-21727

Mitre link : CVE-2026-21727

CVE.ORG link : CVE-2026-21727

JSON object : View

Products Affected

grafana

grafana

CWE

CWE-732

Incorrect Permission Assignment for Critical Resource

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