{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21727","assignerOrgId":"57da9224-a3e2-4646-9d0e-c4dc2e05e7da","state":"PUBLISHED","assignerShortName":"GRAFANA","dateReserved":"2026-01-05T09:26:06.215Z","datePublished":"2026-04-15T18:57:25.185Z","dateUpdated":"2026-05-13T19:28:39.381Z"},"containers":{"cna":{"providerMetadata":{"orgId":"57da9224-a3e2-4646-9d0e-c4dc2e05e7da","shortName":"GRAFANA","dateUpdated":"2026-05-13T19:28:39.381Z"},"datePublic":"2026-04-15T18:52:20.510Z","title":"Grafana Correlations: Cross-Tenant Data Disclosure and Permanent Deletion via Legacy org_id=0 Record","descriptions":[{"lang":"en","value":"---\ntitle: Cross-Tenant Legacy Correlation Disclosure and Deletion\ndraft: false\nhero:\n  image: /static/img/heros/hero-legal2.svg\n  content: \"# Cross-Tenant Legacy Correlation Disclosure and Deletion\"\ndate: 2026-01-29\nproduct: Grafana\nseverity: Low\ncve: CVE-2026-21727\ncvss_score: \"3.3\"\ncvss_vector: \"CVSS:3.3/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N\"\nfixed_versions:\n  - \">=11.6.11 >=12.0.9 >=12.1.6 >=12.2.4\"\n---\nA 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","platforms":["OnPrem"],"defaultStatus":"unaffected","versions":[{"version":"10.2.0","status":"affected","versionType":"semver","lessThan":"12.4.0"}]}],"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"}}],"source":{"discovery":"BUG_BOUNTY"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-732","lang":"en","description":"CWE-732 Incorrect Permission Assignment for Critical Resource"}]}],"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"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-20T18:59:38.753Z"}}]}}