> CVE-2026-73267 [HIGH]

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PUBLISHED
2026-08-21 03:16
MODIFIED
2026-08-21 03:16
CVSS_SCORE V3
7.7
EPSS (Prob. Exploit)
0.63%
Top 51.1%
DATA SOURCES:
NVD 🔗 2026-08-21 CWE MITRE 🔗 2026-09-01 FIRST EPSS 🔗 2026-10-18

> DESCRIPTION

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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EXPLOITABILITY
3.1
IMPACT
4.0

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-602

> CWE DETAILED DESCRIPTIONS

CWE-602: Client-Side Enforcement of Server-Side Security - The product is composed of a server that relies on the client to implement a mechanism that is intended to protect the server.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: multicluster engine for Kubernetes v2.17.2 security update
Red Hat multicluster engine for Kubernetes v2.17 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this up...
Red Hat Security Advisory: multicluster engine for Kubernetes v2.6.14 security update
Red Hat multicluster engine for Kubernetes v2.6 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this upd...
Red Hat Security Advisory: multicluster engine for Kubernetes v2.9.7 security update
Red Hat multicluster engine for Kubernetes v2.9 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this upd...
Red Hat Security Advisory: multicluster engine for Kubernetes v2.8.10 security update
Red Hat multicluster engine for Kubernetes v2.8 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this upd...
Red Hat Security Advisory: multicluster engine for Kubernetes v2.10.6 security update
Red Hat multicluster engine for Kubernetes v2.10 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this up...
Red Hat Security Advisory: multicluster engine for Kubernetes v2.11.6 security update
Red Hat multicluster engine for Kubernetes v2.11 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this up...

> HISTORIQUE DES MODIFICATIONS

Première apparition
21/08/2026 03:16
Source: NVD
📊 ENRICHISSEMENT 01/09/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-602: Client-Side Enforcement of Server-Side Security - The product is composed of a server that relies on the client to implement a mechanism that is intended to protect the server.
Total des modifications: 1 Dernière mise à jour: 1 month ago

> REFERENCES

https://access.redhat.com/security/cve/CVE-2026-73267
https://bugzilla.redhat.com/show_bug.cgi?id=2514218
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