CVE-2026-22872

Katalog CVE

CVSS 9.1 · Critical EPSS 0,68%

Kerentanan Improper Input Validation pada projectcapsule capsule. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

Capsule is a multi-tenancy and policy-based framework for Kubernetes. The Capsule Controller runs with cluster-admin privileges. Although the TenantResource RawItems processing logic forcibly sets the namespace, this is ineffective for cluster-scoped resources. Prior to version 0.13.0, tenant administrators can leverage the Controller's elevated privileges to create cluster-scoped resources (such as ClusterRole and ValidatingWebhookConfiguration) that they cannot create directly, achieving cross-tenant privilege escalation and cluster-level attacks. The attack vector has a few limiting factors. This attack requires Tenant Owner privileges and requires Capsule Controller running with cluster-admin privileges (default configuration). Additionally, some clusters may have additional admission controllers blocking malicious resources. Version 0.13.0 patches this issue.

Rincian

Terbit di NVD

1 Juni 2026

Terakhir diubah

22 Juli 2026

Status NVD

Analyzed

CVSS 3.1

9.1 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation
CWE-863: Incorrect Authorization

EPSS (30 hari)

0,68% peluang dieksploitasi; lebih tinggi dari 51,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/projectcapsule/capsule/security/advisories/GHSA-qjjm-7j9w-pw72 exploit · advisory vendor
• https://github.com/projectcapsule/capsule/releases/tag/v0.13.0 product · release notes