{"id":"BIT-kibana-2026-42400","summary":"Uncontrolled Resource Consumption in Kibana Leading to Denial of Service","details":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user can send a specially crafted compressed request payload that is processed prior to authorization checks, causing excessive memory and CPU resource consumption that can result in a Kibana instance becoming unresponsive or crashing.","aliases":["BIT-elk-2026-42400","CVE-2026-42400"],"modified":"2026-06-01T14:41:28.442831169Z","published":"2026-06-01T11:42:52.847Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:elasticsearch:kibana:*:*:*:*:*:node.js:*:*"]},"references":[{"type":"WEB","url":"https://discuss.elastic.co/t/kibana-8-19-16-9-3-5-9-4-2-security-update-esa-2026-35/386554"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42400"}],"affected":[{"package":{"name":"kibana","ecosystem":"Bitnami","purl":"pkg:bitnami/kibana"},"ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.19.16"},{"introduced":"9.0.0"},{"fixed":"9.3.5"},{"introduced":"9.4.0"},{"fixed":"9.4.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/kibana/BIT-kibana-2026-42400.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.7.5"}