NetSight
medium5.3

CVE-2026-54517

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor.

Impact

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, in BeanDeserializer._deserializeUsingPropertyBased, the active-view (@JsonView) filter was applied only to creator properties; the regular property-buffering branch performed no prop.visibleInView(activeView) check. A change making SetterlessProperty.isMerging() return true routed setterless Collection/Map properties through this unguarded path, so a setterless collection annotated with a restricted @JsonView is populated from attacker JSON even when the active view excludes it. This vulnerability is fixed in 2.21.4 and 3.1.4.

Affected packages

EcosystemPackageAffectedFixed in
mavencom.fasterxml.jackson.core:jackson-databind>= 2.21.0, < 2.21.42.21.4
maventools.jackson.core:jackson-databind>= 3.0.0, < 3.1.43.1.4

Affected products

VendorProductAffected versions
FasterxmlJackson-Databind
from 2.21.0 before 2.21.4
from 3.0.0 before 3.1.4

Weakness classification

References