CVE-2026-59889
Description
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.
How to fix
- com.fasterxml.jackson.core:jackson-databind2.21.5, 2.18.9, 2.22.1 or later
- tools.jackson.core:jackson-databind3.1.5, 3.2.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| com.fasterxml.jackson.core:jackson-databindMaven | 2.19.0 ≤ v < 2.21.5, 2.0.0-RC1 ≤ v < 2.18.9, 2.22.0 ≤ v < 2.22.1 | 2.21.5, 2.18.9, 2.22.1 |
| tools.jackson.core:jackson-databindMaven | 3.0.0 ≤ v < 3.1.5, 3.2.0 ≤ v < 3.2.1 | 3.1.5, 3.2.1 |
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Attack Surface Management
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