---
cve: "CVE-2025-47911"
severity: "MEDIUM"
cvss: 5.3
epss: "50%"
vendor: "golang.org/x/net"
kev: false
exploited: false
published: "2026-02-05 18:16:09"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T01:51:13+02:00"
---

# CVE-2025-47911

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

The html.Parse function in golang.org/x/net/html has quadratic parsing complexity when processing certain inputs, which can lead to denial of service (DoS) if an attacker provides specially crafted HTML content.

## CVSS-Vektor

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

| 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 | Gering | warn |

## Referenzen

- <https://go.dev/cl/709876>
- <https://github.com/golang/vulndb/issues/4440>
- <https://groups.google.com/g/golang-announce/c/jnQcOYpiR2c>
- <https://pkg.go.dev/vuln/GO-2026-4440>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-47911) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_