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5.3 Medium

CVE-2026-54516 jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor

Description

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.

Affected products and versions

Product Affected versions Fixed in
jackson-databind 3.0 3.0.0 → < 3.1.4 3.1.4
jackson-databind 2.21 2.21.0 → < 2.21.4 2.21.4
The 30 CVEs of jackson-databind →
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