MEDIUM
CVE-2026-54516
CVSS
5.3
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.
Weakness (CWE)
CWE-915
EPSS Score
0.45%
Probability of exploitation in next 30 days
38.4th percentile
References
https://github.com/FasterXML/jackson-databind/commit/c3d56dd25d52319828147c5b9aeabf2d485c250a
Patch
https://github.com/FasterXML/jackson-databind/commit/e88cb17006b6af4883b973058f0bb6486e5074af
Patch
https://github.com/FasterXML/jackson-databind/pull/5967
Issue Tracking, Patch
https://github.com/FasterXML/jackson-databind/pull/5968
Issue Tracking, Patch
https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-9fxm-vc8v-hj55
Vendor Advisory
Base CVE data derived from NVD (public domain). Enrichment by
dbcve.org
(CC-BY-4.0). Fetched via API.