---
cve: "CVE-2025-22871"
severity: "CRITICAL"
cvss: 9.1
epss: "78%"
vendor: "Go standard library"
kev: false
exploited: false
published: "2025-04-08 20:15:20"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T04:56:27+02:00"
---

# CVE-2025-22871

> 9.1 CRITICAL

## Beschreibung

The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is used in conjunction with a server that incorrectly accepts a bare LF as part of a chunk-ext.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Referenzen

- <https://go.dev/cl/652998>
- <https://go.dev/issue/71988>
- <https://groups.google.com/g/golang-announce/c/Y2uBTVKjBQk>
- <https://pkg.go.dev/vuln/GO-2025-3563>
- <http://www.openwall.com/lists/oss-security/2025/04/04/4>
- <https://cert-portal.siemens.com/productcert/html/ssa-783943.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-22871) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_