---
cve: "CVE-2026-25705"
severity: "HIGH"
cvss: 8.4
epss: "37%"
vendor: "SUSE"
kev: false
exploited: false
published: "2026-05-13 08:16:16"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-04T21:00:26+02:00"
---

# CVE-2026-25705

> 8.4 HIGH · 🧪 PoC

## Beschreibung

A vulnerability has been identified in [Rancher's Extensions](https://ranchermanager.docs.rancher.com/integrations-in-rancher/rancher-extensions) where malicious code can be injected in Rancher through a path traversal in the `compressedEndpoint` field inside a `UIPlugin` deployment. A malicious UI extension could abuse that to:  *  Overwrite Rancher binaries or configuration to inject code.

  *  Write to /var/lib/rancher/ to tamper with cluster state.

  *  If hostPath volumes are mounted, write to the host node filesystem.

  *  Use this issue to chain with other attack vectors.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 9cf8959713c9152622ce8337c3242da7e44944c1 (Commit)
- 8dbcbe437d063f86acf5da89ce686c2601a18010 (Commit)

## Referenzen

- <https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25705>
- <https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-25705) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_