---
cve: "CVE-2026-22560"
severity: "MEDIUM"
cvss: 5.3
epss: "32%"
vendor: "Rocket.Chat"
kev: false
exploited: false
published: "2026-04-10 17:17:01"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T07:31:30+02:00"
---

# CVE-2026-22560

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

An open redirect vulnerability in Rocket.Chat versions prior to 8.4.0 allows users to be redirected to arbitrary URLs by manipulating parameters within a SAML endpoint.

## 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 |

## Patch verfügbar (OSV)

- bb8c7be629b7cbffc7387285c5cb98e5835ad85f (Commit)

## Referenzen

- <https://hackerone.com/reports/3418031>
- <https://github.com/RocketChat/Rocket.Chat/pull/38994>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-22560) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_