---
cve: "CVE-2026-6429"
severity: "MEDIUM"
cvss: 5.3
epss: "52%"
vendor: "curl"
kev: false
exploited: false
published: "2026-05-13 13:01:56"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T03:22:48+02:00"
---

# CVE-2026-6429

> 5.3 MEDIUM

## Beschreibung

When asked to both use a `.netrc` file for credentials and to follow HTTP
redirects, libcurl could leak the password used for the first host to the
followed-to host under certain circumstances.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- a05f34973e6c4bb629d018f7cb51487be1c904d8 (Commit)

## Referenzen

- <https://curl.se/docs/CVE-2026-6429.json>
- <https://curl.se/docs/CVE-2026-6429.html>
- <https://hackerone.com/reports/3677759>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-6429) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_