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 in Grafana Correlations arises from a backward compatibility condition that permits legacy correlation records with org_id = 0 to be returned across organizational boundaries. As a result, users with datasource management privileges can access and permanently delete correlation data from other organizations, violating tenant isolation. The flaw affects legacy correlations created before Grafana 10.2. The issue has been addressed in multiple fixed versions starting from 11.6.11 and various 12.x releases.
Potential Impact
An attacker with datasource management privileges can read and delete legacy correlation data belonging to other organizations, leading to unauthorized data disclosure and data loss. The impact is limited to legacy records and requires elevated privileges, resulting in low severity with limited confidentiality and integrity impact and no availability impact.
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 this vulnerability. No other mitigation or workaround is indicated.
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.
CVSS v3.1
Score 3.3low
Affected software
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 in Grafana Correlations arises from a backward compatibility condition that permits legacy correlation records with org_id = 0 to be returned across organizational boundaries. As a result, users with datasource management privileges can access and permanently delete correlation data from other organizations, violating tenant isolation. The flaw affects legacy correlations created before Grafana 10.2. The issue has been addressed in multiple fixed versions starting from 11.6.11 and various 12.x releases.
Potential Impact
An attacker with datasource management privileges can read and delete legacy correlation data belonging to other organizations, leading to unauthorized data disclosure and data loss. The impact is limited to legacy records and requires elevated privileges, resulting in low severity with limited confidentiality and integrity impact and no availability impact.
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 this vulnerability. No other mitigation or workaround is 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
- Remediation Level
- null
Threat ID: 69dfe7b682d89c981f913c3f
Added to database: 04/15/2026, 19:32:06 UTC
Last enriched: 07/30/2026, 07:36:52 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 107
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