{"id":"BIT-elk-2026-78583","summary":"Incorrect Authorization in Kibana Leading to Privilege Escalation","details":"Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153). Elasticsearch cluster privilege declarations originating from integration packages were not validated before being used to mint credentials for enrolled Elastic Agents. A user holding Fleet management privileges could therefore cause every Elastic Agent on a targeted policy to receive a credential carrying arbitrarily elevated Elasticsearch cluster privileges, up to and including full cluster administration.","aliases":["BIT-kibana-2026-78583","CVE-2026-78583"],"modified":"2026-09-09T09:41:01.465091992Z","published":"2026-09-09T08:41:42.876Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:elasticsearch:kibana:*:*:*:*:*:node.js:*:*"]},"references":[{"type":"ADVISORY","url":"https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-140/390158"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78583"}],"affected":[{"package":{"name":"elk","ecosystem":"Bitnami","purl":"pkg:bitnami/elk"},"ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.19.21"},{"introduced":"9.0.0"},{"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-2026-78583.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}],"schema_version":"1.9.0"}