---
cve: "CVE-2026-73267"
severity: "HIGH"
cvss: 7.7
epss: "0.5%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-08-21 03:16:39"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-26T05:43:35+02:00"
---

# CVE-2026-73267

> 7.7 HIGH

## Beschreibung

A flaw was found in the clusterclaims-controller component of multicluster engine (MCE). A tenant with standard permissions to create and delete ClusterClaim resources can exploit this by manipulating the `spec.namespace` field. This allows the tenant to specify and delete any ManagedCluster, including the hub's local-cluster or other tenants' clusters, due to a missing ownership check. This vulnerability can lead to a denial of service by enabling unauthorized deletion of ManagedClusters.

## CVSS-Vektor

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

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

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:59556>
- <https://access.redhat.com/errata/RHSA-2026:59557>
- <https://access.redhat.com/errata/RHSA-2026:59558>
- <https://access.redhat.com/errata/RHSA-2026:59559>
- <https://access.redhat.com/errata/RHSA-2026:59579>
- <https://access.redhat.com/errata/RHSA-2026:59593>
- <https://access.redhat.com/security/cve/CVE-2026-73267>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2514218>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-73267) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_