---
cve: "CVE-2026-59889"
severity: "MEDIUM"
cvss: 6.5
epss: "35%"
vendor: "FasterXML"
kev: false
exploited: false
published: "2026-07-14 21:17:06"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T11:41:51+02:00"
---

# CVE-2026-59889

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- f7b3266eb21a232b35520d31ce5e304beb8f1c7c (Commit)
- 09b89813cde3c8a56c696b5b5fb415fa4a1f1d51 (Commit)

## Referenzen

- <https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-5gvw-p9qm-jgwh>
- <https://github.com/FasterXML/jackson-databind/issues/6060>
- <https://github.com/FasterXML/jackson-databind/pull/6056>
- <https://github.com/FasterXML/jackson-databind/commit/d627a8a86fcb062429282f79f3f256f181ed2c7b>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-59889) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_