{"id":"CVE-2026-42400","aliases":["BIT-elk-2026-42400","BIT-kibana-2026-42400","EUVD-2026-33030","GHSA-mhgf-jqhm-p7p3"],"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). 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.","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":"2026-11-11","score":0.00332,"percentile":0.26786,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2026-05-28T19:42:11Z","modified":"2026-10-28T10:59:18Z","fixes":[{"ecosystem":"Bitnami","package":"elk","fixed_in":["8.19.16","9.3.5","9.4.2"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"kibana","fixed_in":["8.19.16","9.3.5","9.4.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"elk","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"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"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"}]}]}],"products":[{"vendor":"elastic","product":"kibana"}],"references":[{"url":"https://discuss.elastic.co/t/kibana-8-19-16-9-3-5-9-4-2-security-update-esa-2026-35/386554","tags":["Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42400","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-mhgf-jqhm-p7p3"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42400.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-42400","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). 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.","status":"published","published":"2026-05-28T19:42:11.414Z","modified":"2026-05-29T16:47:32.488Z","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":"2026-11-02T13:40:35.004553Z"}],"euvd":[{"id":"EUVD-2026-33030","description":"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.","status":"published","published":"2026-05-28T19:42:11Z","modified":"2026-05-29T16:47:32Z","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":"2026-11-02T18:21:00.772434Z"}],"ghsa":[{"id":"GHSA-mhgf-jqhm-p7p3","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). 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.","status":"published","published":"2026-05-28T21:32:05Z","modified":"2026-05-28T21:32:10Z","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":"2026-11-02T15:08:22.24664Z"}],"nvd":[{"id":"CVE-2026-42400","description":"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.","status":"published","published":"2026-05-28T21:16:30.497Z","modified":"2026-10-14T20:10:00.19Z","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":"2026-11-02T14:12:21.244426Z"}],"osv":[{"id":"CVE-2026-42400","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). 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.","status":"published","published":"2026-05-28T19:42:11.414Z","modified":"2026-10-28T10:59:18.70551937Z","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":"2026-11-02T15:45:04.117819Z"},{"id":"BIT-elk-2026-42400","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). 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.","status":"published","published":"2026-06-01T11:39:13.436Z","modified":"2026-09-08T08:47:20.170617765Z","updated_at":"2026-11-02T15:28:29.563843Z"},{"id":"BIT-kibana-2026-42400","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). 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.","status":"published","published":"2026-06-01T11:42:52.847Z","modified":"2026-09-08T08:47:35.909538089Z","updated_at":"2026-11-02T15:28:32.162822Z"}]}}