---
cve: "CVE-2026-90584"
severity: "MEDIUM"
cvss: 6.9
epss: "42%"
vendor: "TooTallNate"
kev: false
exploited: false
published: "2026-09-13 21:17:02"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T22:38:08+02:00"
---

# CVE-2026-90584

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

A weakness has been identified in TooTallNate Java-WebSocket up to 1.6.1. The impacted element is the function processFrameContinuousAndNonFin of the file Draft_6455.java of the component Fragmentation Handler. Executing a manipulation can lead to allocation of resources. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://vuldb.com/vuln/403169>
- <https://vuldb.com/vuln/403169/cti>
- <https://vuldb.com/cve/CVE-2026-90584>
- <https://vuldb.com/submit/913786>
- <https://github.com/TooTallNate/Java-WebSocket/issues/1508>
- <https://github.com/TooTallNate/Java-WebSocket/pull/1509>
- <https://github.com/TooTallNate/Java-WebSocket/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-90584) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_