Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding only read privileges on a single index can submit one small, specially crafted search request that causes an excessively large memory allocation, exhausting the JVM heap and terminating the affected node.
{
"cpes": [
"cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
"cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:maven:*:*"
],
"severity": "Medium"
}