A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x through 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has JDOM 1.x or 2.x jar in the classpath, an attacker can send a specifically crafted JSON message that allows them to read arbitrary local files on the server.
{ "nvd_published_at": "2019-06-19T14:15:10Z", "cwe_ids": [ "CWE-502" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2019-07-17T14:51:50Z" }