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CVE-2026-59889
Published:July 14, 2026
Updated:August 04, 2026
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.18.0 until 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1, UnwrappedPropertyHandler.processUnwrapped() replays buffered JSON for a @JsonUnwrapped property and calls prop.deserializeAndSet() without a prop.visibleInView(ctxt.getActiveView()) guard, allowing a property annotated with both @JsonView and @JsonUnwrapped to be written from attacker JSON under a less-privileged active view. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.
Affected Packages
tools.jackson.core:jackson-databind (JAVA):
Affected version(s) >=3.0.0 <3.1.5
Fix Suggestion:
Update to version 3.1.5
tools.jackson.core:jackson-databind (JAVA):
Affected version(s) =3.2.0 <3.2.1
Fix Suggestion:
Update to version 3.2.1
com.fasterxml.jackson.core:jackson-databind (JAVA):
Affected version(s) >=2.21.0 <2.21.5
Fix Suggestion:
Update to version 2.21.5
com.fasterxml.jackson.core:jackson-databind (JAVA):
Affected version(s) =2.22.0 <2.22.1
Fix Suggestion:
Update to version 2.22.1
com.fasterxml.jackson.core:jackson-databind (JAVA):
Affected version(s) >=2.18.0 <2.18.9
Fix Suggestion:
Update to version 2.18.9
com.fasterxml.jackson.core:jackson-databind (JAVA):
Affected version(s) >=2.21.0 <2.21.5
Fix Suggestion:
Update to version 2.21.5
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
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
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
EPSS
Base Score:
0.35