A flaw was discovered in Elasticsearch, where a large recursion using the innerForbidCircularReferences function of the PatternBank class could cause the Elasticsearch node to crash.
A successful attack requires a malicious user to have read_pipeline Elasticsearch cluster privilege assigned to them.
{
"cpes": [
"cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:maven:*:*"
],
"severity": "Medium"
}