---
cve: "CVE-2026-54512"
severity: "HIGH"
cvss: 8.1
epss: "78%"
vendor: "FasterXML"
kev: false
exploited: false
published: "2026-06-23 21:17:02"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T05:10:08+02:00"
---

# CVE-2026-54512

> 8.1 HIGH · 🧪 PoC

## Beschreibung

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, jackson-databind's PolymorphicTypeValidator (PTV) is the primary safety mechanism guarding polymorphic deserialization. When polymorphic typing is enabled and a type identifier contains generic parameters (i.e. the type ID string contains

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 0b422144d1785200e44a0b00c973f6ac95adcf5a (Commit)
- dd72fa6c89b5cea6c4eba5a8604f248bbc5d93e5 (Commit)

## Referenzen

- <https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-j3rv-43j4-c7qm>
- <https://github.com/FasterXML/jackson-databind/issues/5988>
- <https://github.com/FasterXML/jackson-databind/commit/434d6c511de7fdd9872f29157aafb6162d12d8d5>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-54512) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_