CVE-2026-101919 (GCVE-0-2026-101919)

Vulnerability from cvelistv5 – Published: 2026-10-05 17:33 – Updated: 2026-10-05 17:33
VLAI
Title
Hypershift: hypershift: unsanitized kubeconfig passthrough from tenant namespace to control plane
Summary
A flaw was found in the HyperShift operator. The operator copies user-provided Kubernetes configuration (kubeconfig) secrets directly into the privileged control plane namespace without proper validation or sanitization. An authenticated user with cluster and secret creation permissions can exploit this vulnerability by supplying a configuration containing unauthorized executable plugins. When downstream controllers consume this configuration, an attacker can achieve arbitrary code execution within the control plane.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-101919 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2542541 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Multicluster Engine for Kubernetes     cpe:/a:redhat:multicluster_engine
Create a notification for this product.
Date Public
2026-09-28 00:00
Show details on NVD website
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