CVE-2026-21727
A cross-tenant isolation vulnerability was found in Grafana’s Correlations feature affecting legacy correlation records.
Published Apr 15, 2026 · updated Aug 19, 2026 · grafana grafana
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.
Code
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Timeline
Detection, updates, and resolution for this record.
Apr 15, 2026 · NIST NVD
Detected
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 cr
Aug 19, 2026 · NIST NVD
Updated
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 cr
Affected
- cpe grafana/grafanaversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-21727
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-21727
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 r
nvd.nist.gov