CyberRota Analysis
AI-GeneratedElasticsearch is vulnerable due to a lack of enforcement on the upper limit of user-supplied counts in search highlighting options, allowing authenticated users with read-only privileges to submit requests that can lead to excessive memory allocation. This can result in a denial of service by terminating the Elasticsearch node process, which negatively impacts cluster performance and health. Organizations using Elasticsearch should prioritize addressing this vulnerability to prevent potential service disruptions.
Original NVD Description
Elasticsearch does not enforce an upper bound on a user-supplied count accepted by a search highlighting option, and the allocation derived from that count is not accounted against any circuit breaker. An authenticated user holding only read privileges on a single searchable index can submit one small search request that causes the node to reserve an excessively large internal data structure. The allocation occurs before the existing highlighting safety limits are evaluated, so memory exhaustion raises a fatal error that terminates the Elasticsearch node process. This results in a denial of service for the affected node and degrades cluster routing and health. The defect is not volumetric and does not depend on the size of the indexed data, so a single request is sufficient.