{"id":"CVE-2026-21727","state":"PUBLISHED","title":"Grafana Correlations: Cross-Tenant Data Disclosure and Permanent Deletion via Legacy org_id=0 Record","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.\n\nThanks to Gyu-hyeok Lee (g2h) for reporting this vulnerability.","publishedAt":"2026-04-15T18:57:25.185Z","updatedAt":"2026-08-27T17:22:44.594Z","severity":{"score":3.3,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N","source":"GRAFANA"},"assigner":"GRAFANA","products":["Grafana Grafana Correlations"],"affected":[{"vendor":"Grafana","product":"Grafana Correlations","defaultStatus":"unaffected","versions":[{"version":"10.2.0","status":"affected","lessThan":"12.4.0","versionType":"semver"}]}],"references":["https://grafana.com/security/security-advisories/cve-2026-21727"],"weaknesses":["CWE-732"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/21xxx/CVE-2026-21727.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21727","state":"PUBLISHED","datePublished":"2026-04-15T18:57:25.185Z","dateUpdated":"2026-08-27T17:22:44.594Z","assignerShortName":"GRAFANA","assignerOrgId":"57da9224-a3e2-4646-9d0e-c4dc2e05e7da","dateReserved":"2026-01-05T09:26:06.215Z"},"containers":{"cna":{"title":"Grafana Correlations: Cross-Tenant Data Disclosure and Permanent Deletion via Legacy org_id=0 Record","descriptions":[{"lang":"en","value":"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.\n\nThanks to Gyu-hyeok Lee (g2h) for reporting this vulnerability."}],"affected":[{"vendor":"Grafana","product":"Grafana Correlations","defaultStatus":"unaffected","versions":[{"version":"10.2.0","status":"affected","lessThan":"12.4.0","versionType":"semver"}]}],"references":[{"url":"https://grafana.com/security/security-advisories/cve-2026-21727","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"version":"3.1","baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N"}}],"providerMetadata":{"shortName":"GRAFANA","orgId":"57da9224-a3e2-4646-9d0e-c4dc2e05e7da","dateUpdated":"2026-08-27T17:22:44.594Z"},"datePublic":"2026-04-15T18:52:20.510Z","source":{"discovery":"BUG_BOUNTY"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-15T19:56:51.668906Z","id":"CVE-2026-21727","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-732","type":"CWE","lang":"en","description":"CWE-732 Incorrect Permission Assignment for Critical Resource"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-20T18:59:38.753Z"}}]}}}