CVE-2026-21727: Vulnerability in Grafana Grafana Correlations
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 that permits org_id = 0 records to be returned across organizations. As a result, users with datasource management privileges can access and permanently delete legacy correlation data from other tenants. The flaw affects correlation records created before Grafana 10.2. The vulnerability has a CVSS 3.3 score reflecting low impact and requires high privileges to exploit. It is addressed in multiple fixed versions starting from 11.6.11 and above.
Potential Impact
An attacker with datasource management privileges can read and delete legacy correlation data belonging to other organizations, potentially leading to unauthorized data disclosure and data loss. The impact is limited to legacy correlation records and requires high privileges, with no availability impact.
Mitigation Recommendations
Upgrade Grafana to version 11.6.11, 12.0.9, 12.1.6, 12.2.4, or later to remediate this vulnerability. Patch status is confirmed by the vendor advisory. No additional mitigation steps are indicated.
CVE-2026-21727: Vulnerability in Grafana Grafana Correlations
Description
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 v3.1
Score 3.3low
Affected software
Grafana
Grafana Correlations
pkg:github/grafana/grafanaRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from a backward compatibility condition in Grafana's Correlations feature that permits org_id = 0 records to be returned across organizations. As a result, users with datasource management privileges can access and permanently delete legacy correlation data from other tenants. The flaw affects correlation records created before Grafana 10.2. The vulnerability has a CVSS 3.3 score reflecting low impact and requires high privileges to exploit. It is addressed in multiple fixed versions starting from 11.6.11 and above.
Potential Impact
An attacker with datasource management privileges can read and delete legacy correlation data belonging to other organizations, potentially leading to unauthorized data disclosure and data loss. The impact is limited to legacy correlation records and requires high privileges, with no availability impact.
Mitigation Recommendations
Upgrade Grafana to version 11.6.11, 12.0.9, 12.1.6, 12.2.4, or later to remediate this vulnerability. Patch status is confirmed by the vendor advisory. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GRAFANA
- Date Reserved
- 2026-01-05T09:26:06.215Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69dfe7b682d89c981f913c3f
Added to database: 04/15/2026, 19:32:06 UTC
Last enriched: 08/11/2026, 13:34:58 UTC
Last updated: 09/14/2026, 10:01:29 UTC
Views: 127
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