---
cve: "CVE-2026-54518"
severity: "MEDIUM"
cvss: 6.5
epss: "26%"
vendor: "FasterXML"
kev: false
exploited: false
published: "2026-06-23 22:16:32"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T12:44:02+02:00"
---

# CVE-2026-54518

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

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, UnwrappedPropertyHandler.processUnwrappedCreatorProperties() replays buffered JSON into creator parameters but never consults prop.visibleInView(activeView). The normal property-based creator path gates creator properties on the active view, but this unwrapped-creator replay path bypasses that check, so a constructor parameter annotated with both @JsonView(AdminView.class) and @JsonUnwrapped is populated from attacker JSON even when a more restrictive view is active. This vulnerability is fixed in 2.21.4 and 3.1.4.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- dd72fa6c89b5cea6c4eba5a8604f248bbc5d93e5 (Commit)
- 0105ba7c8c7d2aa59707c458eeb6c27e77779734 (Commit)

## Referenzen

- <https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rcqc-6cw3-h962>
- <https://github.com/FasterXML/jackson-databind/pull/5971>
- <https://github.com/FasterXML/jackson-databind/pull/5973>
- <https://github.com/FasterXML/jackson-databind/commit/721fa07ebbd4aab4a659a1a68940878315c3e341>
- <https://github.com/FasterXML/jackson-databind/commit/d633bc038f200c1397c07f1a2b46f58e72c91eea>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-54518) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_