GHSA-22vx-2x23-98w6: OpenSearch vulnerable to improper authorization for Rollover Requests

A flaw was identified in the OpenSearch Security plugin’s handling of index rollover requests. When a rollover request included an explicit target index name, the security plugin did not properly evaluate access control permissions against the target index. This could allow a user with rollover permissions on a source index to create a new index with a name they are not authorized to use.