A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the apache-log4j-extra (version 1.2.x) jar in the classpath, and an attacker can provide a JNDI service to access, it is possible to make the service execute a malicious payload.
Use CWE-502, Fasterxml vendor hub and Jackson-Databind product page to widen CVE-2019-17531 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2020-10650, CVE-2021-20190 and CVE-2020-36183 for nearby disclosures in the same product family.