{"id":"CVE-2026-94397","aliases":["AZL-104945","BIT-elasticsearch-2026-94397","EUVD-2026-87801","GHSA-qqjf-f3h2-m87p"],"status":"published","title":"Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service","description":"Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)","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":0.0024,"percentile":0.15197,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2026-09-26T20:42:25Z","modified":"2026-10-28T11:21:41Z","fixes":[{"ecosystem":"Bitnami","package":"elasticsearch","fixed_in":["8.19.22","9.4.7","9.5.4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"rubygem-elasticsearch","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"8.9.0-1"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"elasticsearch","ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.19.22"},{"introduced":"9.0.0"},{"fixed":"9.4.7"},{"introduced":"9.5.0"},{"fixed":"9.5.4"}]}]}],"products":[{"vendor":"elastic","product":"elasticsearch"}],"references":[{"url":"https://discuss.elastic.co/t/elasticsearch-8-19-22-9-4-7-9-5-4-security-update-esa-2026-183/390687","tags":["Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94397","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-qqjf-f3h2-m87p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94397.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-94397","title":"Uncontrolled Resource Consumption in Elasticsearch Leading to denial of 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can lead denial of service via Excessive Allocation (CAPEC-130)","status":"published","published":"2026-10-01T09:24:19.714Z","modified":"2026-10-01T10:00:06.923209292Z","updated_at":"2026-11-02T15:28:29.563843Z"}]}}