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.
Metrics
Affected Vendors & Products
References
History
Wed, 07 Oct 2026 21:30:00 +0000
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ssvc
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Tue, 06 Oct 2026 12:15:00 +0000
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| Metrics |
threat_severity
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threat_severity
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Mon, 05 Oct 2026 19:45:00 +0000
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| First Time appeared |
Redhat multicluster Engine For Kubernetes
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| Vendors & Products |
Redhat multicluster Engine For Kubernetes
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Mon, 05 Oct 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
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| Description | 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. | |
| Title | Hypershift: hypershift: unsanitized kubeconfig passthrough from tenant namespace to control plane | |
| First Time appeared |
Redhat
Redhat multicluster Engine |
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| Weaknesses | CWE-20 | |
| CPEs | cpe:/a:redhat:multicluster_engine | |
| Vendors & Products |
Redhat
Redhat multicluster Engine |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published: 2026-10-05T17:33:44.331Z
Updated: 2026-10-07T20:16:09.762Z
Reserved: 2026-09-28T15:59:56.062Z
Link: CVE-2026-101919
Updated: 2026-10-07T20:16:03.491Z
Status : Awaiting Analysis
Published: 2026-10-05T18:17:30.907
Modified: 2026-10-07T21:17:07.153
Link: CVE-2026-101919