CVE-2026-21727: Vulnerability in Grafana Grafana Correlations
--- 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.
AI Analysis
Technical Summary
This vulnerability arises from a backward compatibility condition in Grafana's Correlations feature where legacy correlation records with org_id = 0 are accessible across organizations. A user with datasource management privileges can exploit this to access and permanently delete legacy correlation data from other tenants. The flaw affects correlations created prior to Grafana 10.2. The vendor has addressed this issue in multiple fixed versions starting from 11.6.11 and above.
Potential Impact
The vulnerability allows unauthorized disclosure and deletion of legacy correlation data across tenants by users with datasource management privileges. The confidentiality and integrity of legacy correlation records are impacted, but availability is not affected. The CVSS score is 3.3, indicating low severity.
Mitigation Recommendations
A fix is available in Grafana versions 11.6.11, 12.0.9, 12.1.6, and 12.2.4 and later. Users should upgrade to one of these versions or newer to remediate the vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2026-21727: Vulnerability in Grafana Grafana Correlations
Description
--- 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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from a backward compatibility condition in Grafana's Correlations feature where legacy correlation records with org_id = 0 are accessible across organizations. A user with datasource management privileges can exploit this to access and permanently delete legacy correlation data from other tenants. The flaw affects correlations created prior to Grafana 10.2. The vendor has addressed this issue in multiple fixed versions starting from 11.6.11 and above.
Potential Impact
The vulnerability allows unauthorized disclosure and deletion of legacy correlation data across tenants by users with datasource management privileges. The confidentiality and integrity of legacy correlation records are impacted, but availability is not affected. The CVSS score is 3.3, indicating low severity.
Mitigation Recommendations
A fix is available in Grafana versions 11.6.11, 12.0.9, 12.1.6, and 12.2.4 and later. Users should upgrade to one of these versions or newer to remediate the vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GRAFANA
- Date Reserved
- 2026-01-05T09:26:06.215Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dfe7b682d89c981f913c3f
Added to database: 4/15/2026, 7:32:06 PM
Last enriched: 4/15/2026, 8:03:25 PM
Last updated: 4/16/2026, 5:45:37 AM
Views: 5
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