CVE-2026-21727

{"id": "CVE-2026-21727", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21727", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-15T19:56:51.668906Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@grafana.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.3, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 0.7}]}, "affected": [{"source": "security@grafana.com", "affectedData": [{"vendor": "Grafana", "product": "Grafana Correlations", "versions": [{"status": "affected", "version": "10.2.0", "lessThan": "12.4.0", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-04-15T20:16:34.290", "references": [{"url": "https://grafana.com/security/security-advisories/cve-2026-21727", "tags": ["Vendor Advisory"], "source": "security@grafana.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-732"}]}], "descriptions": [{"lang": "en", "value": "A cross-tenant isolation vulnerability was found in Grafana\u2019s 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."}, {"lang": "es", "value": "title: Divulgaci\u00f3n y Eliminaci\u00f3n de Correlaci\u00f3n Heredada Entre Inquilinos\ndraft: false\nhero: image: /static/img/heros/hero-legal2.svg content: \u201c# Divulgaci\u00f3n y Eliminaci\u00f3n de Correlaci\u00f3n Heredada Entre Inquilinos\u201d\ndate: 2026-01-29\nproduct: Grafana\nseverity: Baja\ncve: CVE-2026-21727\ncvss_score: \u201c3.3\u201d\ncvss_vector: \u201cCVSS:3.3/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N\u201d\nfixed_versions: - \u201cmayor o igual que 11.6.11 mayor o igual que 12.0.9 mayor o igual que 12.1.6 mayor o igual que 12.2.4\u201d\n---\nSe encontr\u00f3 una vulnerabilidad de aislamiento entre inquilinos en la caracter\u00edstica de Correlaciones de Grafana que afecta a los registros de correlaci\u00f3n heredados. Debido a una condici\u00f3n de compatibilidad con versiones anteriores que permite que los registros con org_id = 0 sean devueltos entre organizaciones, un usuario con privilegios de gesti\u00f3n de fuentes de datos podr\u00eda leer y eliminar permanentemente datos de correlaci\u00f3n heredados pertenecientes a otra organizaci\u00f3n. Este problema afecta a las correlaciones creadas antes de Grafana 10.2 y est\u00e1 solucionado en mayor o igual que 11.6.11, mayor o igual que 12.0.9, mayor o igual que 12.1.6 y mayor o igual que 12.2.4. Gracias a Gyu-hyeok Lee (g2h) por informar de esta vulnerabilidad."}], "lastModified": "2026-10-26T22:10:00.163", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E222AE63-CF86-4357-8D11-A35DCB08CF04", "versionEndExcluding": "11.6.11"}, {"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "303497E8-487F-438B-BD49-0B5494FE1D9C", "versionEndExcluding": "12.0.9", "versionStartIncluding": "12.0.0"}, {"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6DFA2773-579E-444B-A8DC-200D8211D231", "versionEndExcluding": "12.1.6", "versionStartIncluding": "12.1.0"}, {"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C2BDFDFB-565D-4E2C-B32F-E4B66630CA19", "versionEndExcluding": "12.2.4", "versionStartIncluding": "12.2.0"}, {"criteria": "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E33CA4BF-8698-4307-87FB-7C6B56287003", "versionEndExcluding": "12.3.3", "versionStartIncluding": "12.3.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@grafana.com"}