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CVE-2026-54518
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, UnwrappedPropertyHandler.processUnwrappedCreatorProperties() replays buffered JSON into creator parameters but never consults prop.visibleInView(activeView). The normal property-based creator path gates creator properties on the active view, but this unwrapped-creator replay path bypasses that check, so a constructor parameter annotated with both @JsonView(AdminView.class) and @JsonUnwrapped is populated from attacker JSON even when a more restrictive view is active. This vulnerability is fixed in 2.21.4 and 3.1.4.
Affected Packages
https://github.com/FasterXML/jackson-databind.git (GITHUB):
Affected version(s) >=jackson-databind-3.0.0 <jackson-databind-3.1.4
Fix Suggestion:
Update to version jackson-databind-3.1.4
com.fasterxml.jackson.core:jackson-databind (JAVA):
Affected version(s) >=2.21.0 <2.21.4
Fix Suggestion:
Update to version 2.21.4
tools.jackson.core:jackson-databind (JAVA):
Affected version(s) >=3.0.0 <3.1.4
Fix Suggestion:
Update to version 3.1.4
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
EPSS
Base Score:
0.21