{"id":"CVE-2026-78583","title":"Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153)","summary":"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…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-863"],"vendor":"elastic","product":"kibana","affected":["kibana >= 8.0.0, < 8.19.21","kibana >= 9.0.0, < 9.4.6","kibana >= 9.5.0, < 9.5.3"],"patched":["kibana 9.5.3"],"published":"2026-09-03","updated":"2026-09-08","sourceUpdated":"2026-09-08T16:48:51.010","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-78583","references":[{"url":"https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-140/390158","label":"security@elastic.co"}],"tags":["nvd"],"epss":0.00221,"epssPercentile":0.12924,"ingestedAt":"2026-09-08T17:06:31.877Z","slug":"CVE-2026-78583","body":"## Overview\n\nIncorrect 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.\n\n## Affected\n\n- `kibana >= 8.0.0, < 8.19.21`\n- `kibana >= 9.0.0, < 9.4.6`\n- `kibana >= 9.5.0, < 9.5.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `kibana 9.5.3`","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}