CVE-2026-54516 - jackson-databind: Renamed @JsonIgnore'd setters can deserialize via private fields

CVE-2026-54516 - jackson-databind: Renamed @JsonIgnore'd setters can deserialize via private fields

https://cvefeed.io/rssfeed/latest.atom / Wed, 06/24/2026 - 01:01
CVE ID :CVE-2026-54516
Published : June 23, 2026, 8:48 p.m. | 52 minutes ago
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.
Severity: 0.0 | NA
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