CVE-2026-54516
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk39th percentile - higher than 39% of all known CVEs
Summary
Vulnerability in jackson-databind allows an attacker to bypass @JsonIgnore annotation on a setter by using @JsonProperty on a getter. As a result, a private field becomes writable during deserialization, enabling direct data injection into the object.
Risk Assessment
An attacker can supply a renamed JSON key to write data directly to a private field, bypassing validation or business logic implemented in the setter. This may lead to unauthorized data modification or object integrity compromise.
Recommendation
Immediately update jackson-databind to version 3.1.4 (for 3.x branch) or 2.21.4 (for 2.x branch). If update is not possible, consider disabling MapperFeature.INFER_PROPERTY_MUTATORS.
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Original NVD description (English source)
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, POJOPropertiesCollector._renameProperties() allows a property with @JsonProperty("renamed") on the getter and @JsonIgnore on the setter to be renamed rather than dropped. With MapperFeature.INFER_PROPERTY_MUTATORS enabled (default), the private backing field is retained; during deserialization BeanDeserializerFactory.addBeanProps() sees hasField()==true, builds a FieldProperty, and makes the backing field writable. An attacker supplying the renamed JSON key writes the backing field directly, bypassing the @JsonIgnore on the setter. This vulnerability is fixed in 3.1.4.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS