---
cve: "CVE-2025-5187"
severity: "MEDIUM"
cvss: 6.7
epss: "54%"
vendor: "Kubernetes"
kev: false
exploited: false
published: "2025-08-27 17:15:48"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T05:13:59+02:00"
---

# CVE-2025-5187

> 6.7 MEDIUM · 🧪 PoC

## Beschreibung

A vulnerability exists in the NodeRestriction admission controller in Kubernetes clusters where node users can delete their corresponding node object by patching themselves with an OwnerReference to a cluster-scoped resource. If the OwnerReference resource does not exist or is subsequently deleted, the given node object will be deleted via garbage collection.

## CVSS-Vektor

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

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

## Referenzen

- <https://github.com/kubernetes/kubernetes/issues/133471>
- <https://groups.google.com/g/kubernetes-security-announce/c/znSNY7XCztE>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-5187) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_