---
cve: "CVE-2021-31407"
severity: "HIGH"
cvss: 8.6
epss: "2.4%"
vendor: "Vaadin"
kev: false
exploited: false
published: "2021-04-23 16:15:08"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T20:39:27+02:00"
---

# CVE-2021-31407

> 8.6 HIGH · 🧪 PoC

## Beschreibung

Vulnerability in OSGi integration in com.vaadin:flow-server versions 1.2.0 through 2.4.7 (Vaadin 12.0.0 through 14.4.9), and 6.0.0 through 6.0.1 (Vaadin 19.0.0) allows attacker to access application classes and resources on the server via crafted HTTP request.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- ada7f7be8fa6c938941674de8650ce6921aec60d (Commit)
- eeffcf5ff22632c02aaa912cf024a29cbbaad311 (Commit)

## Referenzen

- <https://vaadin.com/security/cve-2021-31407>
- <https://github.com/vaadin/osgi/issues/50>
- <https://github.com/vaadin/flow/pull/10229>
- <https://github.com/vaadin/flow/pull/10269>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2021-31407) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_