{"id":"BIT-elasticsearch-2026-56149","summary":"Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service","details":"Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.","aliases":["CVE-2026-56149"],"modified":"2026-09-08T08:47:15.086101755Z","published":"2026-07-06T05:48:38.506Z","database_specific":{"cpes":["cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://discuss.elastic.co/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-43"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56149"}],"affected":[{"package":{"name":"elasticsearch","ecosystem":"Bitnami","purl":"pkg:bitnami/elasticsearch"},"ranges":[{"type":"SEMVER","events":[{"introduced":"8.0.0"},{"fixed":"8.19.17"},{"introduced":"9.0.0"},{"fixed":"9.3.6"},{"introduced":"9.4.0"},{"fixed":"9.4.3"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/elasticsearch/BIT-elasticsearch-2026-56149.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.9.0"}