{"id":"BIT-elk-2026-78593","summary":"Improper Control of Generation of Code in Kibana Leading to Privilege Escalation","details":"An insufficiently validated configuration field in Kibana's Cribl integration allows an authenticated user holding Kibana Fleet management privileges to inject attacker-controlled expressions into a server-side script template, resulting in an Elasticsearch ingest pipeline being written beyond the caller's authorized Elasticsearch permissions.","aliases":["BIT-kibana-2026-78593","CVE-2026-78593"],"modified":"2026-09-09T09:41:01.263095312Z","published":"2026-09-09T08:41:44.135Z","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-2026-151/390159"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78593"}],"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-2026-78593.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"}