Restlet Framework before 2.3.12 allows remote attackers to access arbitrary files via a crafted REST API HTTP request that conducts an XXE attack, because only general external entities (not parameter external entities) are properly considered. This is related to XmlRepresentation, DOMRepresentation, SaxRepresentation, and JacksonRepresentation.
github.com/advisories/GHSA-cvj4-g3gx-8vqq
github.com/restlet/restlet-framework-java
github.com/restlet/restlet-framework-java/commit/fe75aff3af23b879b984db7a2b6824cee0ef0fc5
github.com/restlet/restlet-framework-java/wiki/XEE-security-enhancements
lgtm.com/blog/restlet_CVE-2017-14949
nvd.nist.gov/vuln/detail/CVE-2017-14949