---
cve: "CVE-2025-47912"
severity: "MEDIUM"
cvss: 5.3
epss: "0.4%"
vendor: "Go standard library"
kev: false
exploited: false
published: "2025-10-29 23:16:18"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-29T06:30:38+02:00"
---

# CVE-2025-47912

> 5.3 MEDIUM

## Beschreibung

The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: "http://[::1]/". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 3a666bca00d7fb30d55e252131ea2cf2006dc3a3 (Commit)
- bed6c81c2dceeb19c7f9e46fc173671abcda7cfd (Commit)

## BSI-Hinweise (deutsch)

- [Golang Go: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2025-2227)

## Referenzen

- <https://go.dev/issue/75678>
- <https://go.dev/cl/709857>
- <https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI>
- <https://pkg.go.dev/vuln/GO-2025-4010>
- <http://www.openwall.com/lists/oss-security/2025/10/08/1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-47912) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_