{"id":"CVE-2026-63261","aliases":["BIT-elk-2026-63261","BIT-kibana-2026-63261","EUVD-2026-47589","GHSA-95j6-2ch4-858w"],"status":"published","title":"Uncontrolled Resource Consumption in Kibana Leading to Denial of Service","description":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00472,"percentile":0.41053,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2026-07-21T22:58:45Z","modified":"2026-10-28T11:16:58Z","fixes":[{"ecosystem":"Bitnami","package":"elk","fixed_in":["8.19.19","9.3.8","9.4.4"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"kibana","fixed_in":["8.19.19","9.3.8","9.4.4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"elk","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.19.19"},{"introduced":"9.0.0"},{"fixed":"9.3.8"},{"introduced":"9.4.0"},{"fixed":"9.4.4"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"kibana","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.19.19"},{"introduced":"9.0.0"},{"fixed":"9.3.8"},{"introduced":"9.4.0"},{"fixed":"9.4.4"}]}]}],"products":[{"vendor":"elastic","product":"kibana"}],"references":[{"url":"https://discuss.elastic.co/t/kibana-8-19-19-9-3-8-9-4-4-security-update-esa-2026-72/388575","tags":["Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63261","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-95j6-2ch4-858w"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63261.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-63261","title":"Uncontrolled Resource Consumption in Kibana Leading to Denial of Service","description":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.","status":"published","published":"2026-07-21T22:58:45.488Z","modified":"2026-07-22T14:35:50.832Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:19:55.914391Z"}],"euvd":[{"id":"EUVD-2026-47589","description":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.","status":"published","published":"2026-07-21T22:58:45Z","modified":"2026-07-22T14:35:50Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T18:19:46.391735Z"}],"ghsa":[{"id":"GHSA-95j6-2ch4-858w","title":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive...","description":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.","status":"published","published":"2026-07-22T00:32:36Z","modified":"2026-07-22T00:32:45Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:09:38.678188Z"}],"nvd":[{"id":"CVE-2026-63261","description":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.","status":"published","published":"2026-07-21T23:18:02.817Z","modified":"2026-10-24T17:10:00.22Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:12:32.089897Z"}],"osv":[{"id":"CVE-2026-63261","title":"Uncontrolled Resource Consumption in Kibana Leading to Denial of Service","description":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.","status":"published","published":"2026-07-21T22:58:45.488Z","modified":"2026-10-28T11:16:58.64679427Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:45:13.306117Z"},{"id":"BIT-elk-2026-63261","title":"Uncontrolled Resource Consumption in Kibana Leading to Denial of Service","description":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.","status":"published","published":"2026-07-28T08:53:37.196Z","modified":"2026-09-08T08:47:06.72467172Z","updated_at":"2026-11-02T15:28:29.563843Z"},{"id":"BIT-kibana-2026-63261","title":"Uncontrolled Resource Consumption in Kibana Leading to Denial of Service","description":"Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A low-privileged authenticated user can send a specially crafted request to a Kibana machine learning feature, causing the server to exhaust available memory and become unavailable to all users.","status":"published","published":"2026-07-28T08:58:21.435Z","modified":"2026-09-08T08:48:23.921626476Z","updated_at":"2026-11-02T15:28:32.162822Z"}]}}