{"id":"CVE-2026-72666","state":"PUBLISHED","title":"Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Query Execution on Managed Hosts","description":"Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized query execution against Elastic Agents that are assigned to a Kibana space the requesting user has no access to, via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). A user who is authorized to run Osquery live queries in one space can have a query carried out on hosts belonging to another space, resulting in disclosure of information from those hosts to the Osquery results data stream.","publishedAt":"2026-08-13T19:11:34.283Z","updatedAt":"2026-08-14T16:37:39.896Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","source":"elastic"},"assigner":"elastic","products":["Elastic Kibana"],"affected":[{"vendor":"Elastic","product":"Kibana","defaultStatus":"unaffected","versions":[{"version":"9.1.0","status":"affected","lessThanOrEqual":"9.4.4","versionType":"semver"}]}],"references":["https://discuss.elastic.co/t/kibana-9-4-5-security-update-esa-2026-97/389537"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72666.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72666","state":"PUBLISHED","datePublished":"2026-08-13T19:11:34.283Z","dateUpdated":"2026-08-14T16:37:39.896Z","assignerShortName":"elastic","assignerOrgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","dateReserved":"2026-08-10T11:17:45.103Z"},"containers":{"cna":{"title":"Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Query Execution on Managed Hosts","descriptions":[{"lang":"en","value":"Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized query execution against Elastic Agents that are assigned to a Kibana space the requesting user has no access to, via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). A user who is authorized to run Osquery live queries in one space can have a query carried out on hosts belonging to another space, resulting in disclosure of information from those hosts to the Osquery results data stream."}],"affected":[{"vendor":"Elastic","product":"Kibana","defaultStatus":"unaffected","versions":[{"version":"9.1.0","status":"affected","lessThanOrEqual":"9.4.4","versionType":"semver"}]}],"references":[{"url":"https://discuss.elastic.co/t/kibana-9-4-5-security-update-esa-2026-97/389537"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","baseScore":6.8,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","description":"CWE-639 Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"elastic","orgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","dateUpdated":"2026-08-13T19:11:34.283Z"},"source":{"discovery":"Elastic"},"x_generator":{"engine":"Elastic CVE Publisher 1.0.0"},"impacts":[{"capecId":"CAPEC-1","descriptions":[{"lang":"en","value":"CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-14T16:37:27.278232Z","id":"CVE-2026-72666","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-14T16:37:39.896Z"}}]}}}