---
cve: "CVE-2026-10059"
severity: "CRITICAL"
cvss: 9.1
epss: "34%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-08-05 09:18:13"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T03:43:41+02:00"
---

# CVE-2026-10059

> 9.1 CRITICAL

## Beschreibung

A flaw was found in the Multicluster Engine for Kubernetes ClusterCurator controller. A tenant administrator with namespace-scoped privileges can exploit this vulnerability by creating a namespaced ClusterCurator. This action inadvertently grants the tenant administrator the ability to mint a token for a ServiceAccount with cluster-wide administrative authority. This leads to a privilege escalation, allowing the tenant administrator to gain full control over the cluster.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/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 | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| 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/security/cve/CVE-2026-10059>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2483187>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-10059) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_