CVE-2026-54516
Published:June 23, 2026
Updated:June 29, 2026
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 Packages
https://github.com/FasterXML/jackson-databind.git (GITHUB):
Affected version(s) >=jackson-databind-3.0.0 <jackson-databind-3.1.4Fix Suggestion:
Update to version jackson-databind-3.1.4com.fasterxml.jackson.core:jackson-databind (JAVA):
Affected version(s) >=2.21.0 <2.21.4Fix Suggestion:
Update to version 2.21.4tools.jackson.core:jackson-databind (JAVA):
Affected version(s) >=3.0.0 <3.1.4Fix Suggestion:
Update to version 3.1.4Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improperly Controlled Modification of Dynamically-Determined Object Attributes
EPSS
Base Score:
0.28