Elasticsearch versions 7.0.0-7.3.2 and 6.7.0-6.8.3 contain a username disclosure flaw was found in the API Key service. An unauthenticated attacker could send a specially crafted request and determine if a username exists in the Elasticsearch native realm.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Elasticsearch | Elastic | 6.7.0 (including) | 6.8.3 (including) |
| Elasticsearch | Elastic | 7.0.0 (including) | 7.3.2 (including) |
| Elasticsearch | Ubuntu | trusty | * |
| Elasticsearch | Ubuntu | upstream | * |