{"schema":"threatline.record/2","record":{"id":"CVE-2026-21727","aliases":["BIT-grafana-2026-21727","GHSA-p5x9-j974-rpfp","GO-2026-6664"],"summary":"Grafana legacy correlations allow cross-tenant disclosure and deletion","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.","categories":["Applications & CMS"],"product":"github.com/grafana/grafana","vendor":"Grafana","ecosystem":"go","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-p5x9-j974-rpfp","source_modified_at":"2026-10-05T22:33:26Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"go","name":"github.com/grafana/grafana"},"range":"< 1.9.2-0.20260127141016-e702db6096e0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-21727","source_modified_at":"2026-08-27T17:22:44.594Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Grafana Correlations","vendor":"Grafana","versions":[{"version":"10.2.0","status":"affected","versionType":"semver","lessThan":"12.4.0"}],"defaultStatus":"unaffected"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-p5x9-j974-rpfp","source_modified_at":"2026-10-07T17:55:45.029966249Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"Go","name":"github.com/grafana/grafana","purl":"pkg:golang/github.com/grafana/grafana"},"ranges":[{"events":[{"introduced":"0"},{"fixed":"1.9.2-0.20260127141016-e702db6096e0"}],"type":"SEMVER"}],"versions":[]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-p5x9-j974-rpfp","source_modified_at":"2026-10-05T22:33:26Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"go","name":"github.com/grafana/grafana"},"version":"1.9.2-0.20260127141016-e702db6096e0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-21727","source_modified_at":"2026-08-27T17:22:44.594Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Grafana Correlations","ecosystem":null},"version":"12.4.0","basis":"first unaffected version stated in the CVE record"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-p5x9-j974-rpfp","source_modified_at":"2026-10-07T17:55:45.029966249Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"Go","name":"github.com/grafana/grafana","purl":"pkg:golang/github.com/grafana/grafana"},"version":"1.9.2-0.20260127141016-e702db6096e0"}],"cvss":3.3,"severity":"Low","kev":{"listed":false},"epss":{"probability":0.00204,"percentile":0.09877,"score_date":"2026-10-23"},"published_at":"2026-04-15T18:57:25.185Z","modified_at":"2026-10-07T17:55:45.029966249Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-p5x9-j974-rpfp","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-05T22:33:26Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-21727","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-08-27T17:22:44.594Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-p5x9-j974-rpfp","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-07T17:55:45.029966249Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-21727","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21727","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://grafana.com/security/security-advisories/cve-2026-21727","tags":["vendor-advisory"]},{"url":"https://github.com/grafana/grafana/commit/2b2847625b8a77ba47128ccb5ecbcd72542cb9bc","source":"GitHub Advisory Database"},{"url":"https://github.com/grafana/grafana/commit/2cf0dd6fde3f5a2b92864e2376ae5378c7df45e2","source":"GitHub Advisory Database"},{"url":"https://github.com/grafana/grafana/commit/4010ee30bb441bc399a1f37bdc8ab55ec909f3b7","source":"GitHub Advisory Database"},{"url":"https://github.com/grafana/grafana/commit/8e7ea333991d913298bd68d4787da9c6977a0a8c","source":"GitHub Advisory Database"},{"url":"https://github.com/grafana/grafana/commit/a9a98fc4327182d1bdb9a74b5c2938d5c127e764","source":"GitHub Advisory Database"},{"url":"https://github.com/grafana/grafana/commit/e702db6096e0509ff2825f732697f077e9e6289f","source":"GitHub Advisory Database"},{"url":"https://github.com/advisories/GHSA-p5x9-j974-rpfp","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-04-15T19:56:51.668906Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-07T17:55:45.029966249Z","content_hash":"e477c47d793a7c4a2dc10a0f7bdf71358806067e7ef668005cfd2da0e13f493c"}}