medium6.5
CVE-2026-59889
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 2.18.0 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
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | tools.jackson.core:jackson-databind | >= 3.0.0, <= 3.1.4 | 3.1.5 |
| maven | com.fasterxml.jackson.core:jackson-databind | >= 2.22.0, < 2.22.1 | 2.22.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-5gvw-p9qm-jgwh
- https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5gvw-p9qm-jgwh
- https://nvd.nist.gov/vuln/detail/CVE-2026-59889
- https://github.com/FasterXML/jackson-databind/issues/6060
- https://github.com/FasterXML/jackson-databind/pull/6056
- https://github.com/FasterXML/jackson-databind/commit/d627a8a86fcb062429282f79f3f256f181ed2c7b