{“lastseen”:””,”description”:”—\\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 – \\”\\u003e=11.6.11 \\u003e=12.0.9 \\u003e=12.1.6 \\u003e=12.2.4\\”\\n—\\nA 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 \\u003e=11.6.11, \\u003e=12.0.9, \\u003e=12.1.6, and \\u003e=12.2.4.\\n\\nThanks to Gyu-hyeok Lee (g2h) for reporting this vulnerability.”,”published”:”2026-04-15T18:57:25.185Z”,”modified”:”2026-04-15T19:15:14.075Z”,”type”:”cve”,”title”:”Grafana Correlations: Cross-Tenant Data Disclosure and Permanent Deletion via Legacy org_id=0 Record”,”source”:”GRAFANA”,”references”:”https:\/\/grafana.com\/security\/security-advisories\/cve-2026-21727″,”id”:”CVE-2026-21727″,”bulletinFamily”:””,”cwe”:null,”cvelist”:null,”sourceData”:”Grafana Grafana Correlations 10.2.0″,”sourceHref”:””,”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”,”version”:”3.1″},”cvss2″:{},”cvss3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””,”cvssV3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””}},”href”:””,”category_name”:”CVE”,”post_link”:””,”product”:”Grafana Correlations”,”version”:”10.2.0″,”vendor”:”Grafana”,”ai_description”:””,”ai_severity”:””,”ai_vendor”:””,”ai_product”:””,”ai_version”:””,”ai_score”:0}<\/p>\n","protected":false},"excerpt":{"rendered":"
{“lastseen”:””,”description”:”—\\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 –…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,121,12,71,13,7,11,5],"class_list":["post-47256","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-33","tag-exploit","tag-low","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n