{"id":"CVE-2026-21727","aliases":["BIT-grafana-2026-21727","GHSA-p5x9-j974-rpfp","GO-2026-6664"],"url":"https://o3.security/vulnerability/CVE-2026-21727","summary":"Grafana Correlations: Cross-Tenant Data Disclosure and Permanent Deletion via Legacy org_id=0 Record","details":"---\nhero:\n  image: /static/img/heros/hero-legal2.svg\n  content: \"# Cross-Tenant Legacy Correlation Disclosure and Deletion\"\ndate: 2026-01-29\nproduct: Grafana\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.","published":"2026-04-15T18:57:25.185Z","modified":"2026-10-24T10:30:24.300360979Z","cvss":{"score":3.3,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Go","name":"github.com/grafana/grafana","fixedVersion":"1.9.2-0.20260127141016-e702db6096e0"}],"fix":{"url":"https://github.com/grafana/grafana/commit/2b2847625b8a77ba47128ccb5ecbcd72542cb9bc","label":"grafana/grafana@2b28476"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21727.json"},{"type":"ADVISORY","url":"https://grafana.com/security/security-advisories/cve-2026-21727"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21727"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/2b2847625b8a77ba47128ccb5ecbcd72542cb9bc"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/2cf0dd6fde3f5a2b92864e2376ae5378c7df45e2"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/4010ee30bb441bc399a1f37bdc8ab55ec909f3b7"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/8e7ea333991d913298bd68d4787da9c6977a0a8c"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/a9a98fc4327182d1bdb9a74b5c2938d5c127e764"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/e702db6096e0509ff2825f732697f077e9e6289f"},{"type":"PACKAGE","url":"https://github.com/grafana/grafana"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:30:24.300360979Z"}}