---
cve: "CVE-2026-48845"
severity: "MEDIUM"
cvss: 6.5
epss: "38%"
vendor: "Roundcube"
kev: false
exploited: false
published: "2026-05-25 20:16:37"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T02:53:17+02:00"
---

# CVE-2026-48845

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

In Roundcube Webmail 1.6.x between 1.6.14 and 1.6.16 and 1.7.x before 1.7.1, remote image blocking was not honored for URLs pointing to local/private destinations, which may lead to information disclosure or privilege escalation via a text/html email message.

## CVSS-Vektor

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

## Patch verfügbar (OSV)

- ea1798a6fbf060abcc0ba73b2435036bf8016a5a (Commit)
- d40ec266240f2456a52c24ef2848e18bbfb5c300 (Commit)

## Referenzen

- <https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1>
- <https://github.com/roundcube/roundcubemail/releases/tag/1.7.1>
- <https://github.com/roundcube/roundcubemail/commit/d82b8c6cd06c378eca6d647ccd548f4ff1c68659>
- <https://github.com/roundcube/roundcubemail/releases/tag/1.6.16>
- <https://github.com/roundcube/roundcubemail/commit/7b52353653a67e6073b97d70eb94047132b78556>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-48845) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_