{"id":"CVE-2026-33464","title":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130)","summary":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding a low-privileged role can submit a specially crafted, oversized payload to an inter…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-400"],"vendor":"elastic","product":"kibana","affected":["kibana >= 8.0.0, < 8.19.16","kibana >= 9.0.0, < 9.3.5","kibana = 9.4.0"],"patched":["kibana 9.3.5"],"published":"2026-05-28","updated":"2026-10-14","sourceUpdated":"2026-10-14T20:10:00.190","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-33464","references":[{"url":"https://discuss.elastic.co/t/kibana-8-19-16-9-3-5-9-4-1-security-update-esa-2026-32/386548","label":"security@elastic.co"}],"tags":["nvd"],"epss":0.00472,"epssPercentile":0.39249,"ingestedAt":"2026-10-14T20:53:12.343Z","slug":"CVE-2026-33464","body":"## Overview\n\nUncontrolled Resource Consumption (CWE-400) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding a low-privileged role can submit a specially crafted, oversized payload to an internal Kibana API, causing the Kibana process to exhaust available resources and become unresponsive to all users until the service recovers or is restarted.\n\n## Affected\n\n- `kibana >= 8.0.0, < 8.19.16`\n- `kibana >= 9.0.0, < 9.3.5`\n- `kibana = 9.4.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `kibana 9.3.5`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}