---
cve: "CVE-2026-73507"
severity: "HIGH"
cvss: 7.5
epss: "46%"
vendor: "netty"
kev: false
exploited: false
published: "2026-08-13 15:20:17"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T06:58:06+02:00"
---

# CVE-2026-73507

> 7.5 HIGH · 🧪 PoC

## Beschreibung

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.xml.XmlFrameDecoder.decode() failed to preserve closing-tag parser state across invocations, so an unauthenticated remote attacker could trickle-feed repeated

## CVSS-Vektor

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

| 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 | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- fca0764703b3bb59c6e6dc5d29c6d9710d35c0e6 (Commit)
- 3703d79669ee024f6483c9d8697ac58ba546df33 (Commit)

## Referenzen

- <https://github.com/netty/netty/security/advisories/GHSA-v74w-7mr3-4qg3>
- <https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b>
- <https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6>
- <https://github.com/netty/netty/releases/tag/netty-4.1.136.Final>
- <https://github.com/netty/netty/releases/tag/netty-4.2.16.Final>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-73507) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_