{"id":"BIT-elasticsearch-2026-63136","summary":"Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service","details":"Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). A user with search privileges can submit a specially crafted search request that causes a data node to exhaust available heap memory, resulting in node unavailability and cluster degradation. An attacker could leverage this vulnerability to cause cluster downtime requiring manual intervention to restore service.","aliases":["CVE-2026-63136"],"modified":"2026-09-08T08:47:15.705935808Z","published":"2026-07-28T08:53:02.747Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:maven:*:*"]},"references":[{"type":"ADVISORY","url":"https://discuss.elastic.co/t/elasticsearch-8-19-15-9-2-9-9-3-4-security-update-esa-2026-60/388559"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63136"}],"affected":[{"package":{"name":"elasticsearch","ecosystem":"Bitnami","purl":"pkg:bitnami/elasticsearch"},"ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.19.15"},{"introduced":"9.0.0"},{"fixed":"9.2.9"},{"introduced":"9.4.0"},{"fixed":"9.3.4"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/elasticsearch/BIT-elasticsearch-2026-63136.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":"1.9.0"}