---
cve: "CVE-2026-23904"
severity: "HIGH"
cvss: 7.3
epss: "65%"
vendor: "Apache Software Foundation"
kev: false
exploited: false
published: "2026-07-29 09:07:18"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-15T04:22:11+02:00"
---

# CVE-2026-23904

> 7.3 HIGH · 🧪 PoC

## Beschreibung

Kyuubi Engine UI proxy accepts a host and port from the request path and proxies HTTP requests to that destination. A remote requester with network access to the proxy can cause the Kyuubi server to send HTTP requests to arbitrary reachable hosts, resulting in SSRF or open-proxy behavior.


This issue affects Apache Kyuubi: from 1.8.0 before 1.12.0.

Users are recommended to upgrade to version 1.12.0, which disables the proxy by default. To restore proxied Engine UI, set kyuubi.frontend.rest.engine.ui.proxy.enabled=true and configure allowed target hosts with kyuubi.frontend.rest.engine.ui.proxy.hosts.

## CVSS-Vektor

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

## Patch verfügbar (OSV)

- bca17a7b5cfa0d32440832f5611f922164644943 (Commit)

## Referenzen

- <https://github.com/apache/kyuubi/pull/7483>
- <https://lists.apache.org/thread/ps79fcfx49ox9kwgztc5t5bw0tyhck9m>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-23904) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_