CVE-2025-52999: jackson-core Has Potential for StackoverflowError if user parses an input file that contains very deeply nested data

jackson-core contains core low-level incremental ("streaming") parser and generator abstractions used by Jackson Data Processor. In versions prior to 2.15.0, if a user parses an input file and it has deeply nested data, Jackson could end up throwing a StackoverflowError if the depth is particularly large. jackson-core 2.15.0 contains a configurable limit for how deep Jackson will traverse in an input document, defaulting to an allowable depth of 1000. jackson-core will throw a StreamConstraintsException if the limit is reached. jackson-databind also benefits from this change because it uses jackson-core to parse JSON inputs. As a workaround, users should avoid parsing input files from untrusted sources.

— NVD

The jackson-core package is vulnerable to a Denial of Service (DoS) attack. The methods in the classes listed below fail to restrict input size when performing numeric type conversions. A remote attacker can exploit this vulnerability by causing the application to deserialize data containing certain numeric types with large values. Deserializing many of the aforementioned objects may cause the application to exhaust all available resources, resulting in a DoS condition.

— IBM