{"id":"BIT-elk-2026-78596","summary":"Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations","details":"Missing Authorization in Kibana Leading to Unauthorized Modification of Data / Missing Authorization (CWE-862) in Kibana can lead to unauthorized modification of data via Privilege Abuse (CAPEC-122). An authenticated user holding Security read-level access in a single Kibana space could trigger Entity Analytics migration operations that perform privileged writes across all Kibana spaces, regardless of that user's actual access scope.","aliases":["BIT-kibana-2026-78596","CVE-2026-78596"],"modified":"2026-09-09T09:41:02.004977590Z","published":"2026-09-09T08:41:46.710Z","database_specific":{"cpes":["cpe:2.3:a:elasticsearch:kibana:*:*:*:*:*:node.js:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-154/390161"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78596"}],"affected":[{"package":{"name":"elk","ecosystem":"Bitnami","purl":"pkg:bitnami/elk"},"ranges":[{"type":"SEMVER","events":[{"introduced":"8.18.3"},{"fixed":"8.19.21"},{"introduced":"9.0.3"},{"fixed":"9.4.6"},{"introduced":"9.5.0"},{"fixed":"9.5.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/elk/BIT-elk-2026-78596.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"}]}],"schema_version":"1.9.0"}