{"id":"CVE-2018-17247","aliases":["GHSA-ccmr-qj26-845g"],"url":"https://o3.security/vulnerability/CVE-2018-17247","summary":"Improper Restriction of XML External Entity Reference in Elasticsearch","details":"Elasticsearch Security versions 6.5.0 and 6.5.1 contain an XXE flaw in Machine Learning's find_file_structure API. If a policy allowing external network access has been added to Elasticsearch's Java Security Manager then an attacker could send a specially crafted request capable of leaking content of local files on the Elasticsearch node. This could allow a user to access information that they should not have access to.","published":"2018-12-20T22:29:00.427Z","modified":"2026-07-08T14:58:11.588854Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.elasticsearch:elasticsearch","fixedVersion":"6.5.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/106294"},{"type":"ADVISORY","url":"https://discuss.elastic.co/t/elastic-stack-6-5-2-security-update/159594"},{"type":"ADVISORY","url":"https://www.elastic.co/community/security"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T14:58:11.588854Z"}}