Directory traversal vulnerability in Elasticsearch before 1.6.1 allows remote attackers to read arbitrary files via unspecified vectors related to snapshot API calls.
packetstormsecurity.com/files/132721/Elasticsearch-Directory-Traversal.html
packetstormsecurity.com/files/133797/ElasticSearch-Path-Traversal-Arbitrary-File-Download.html
packetstormsecurity.com/files/133964/ElasticSearch-Snapshot-API-Directory-Traversal.html
nvd.nist.gov/vuln/detail/CVE-2015-5531
www.elastic.co/community/security
www.exploit-db.com/exploits/38383