High severity8.3NVD Advisory· Published Jun 22, 2026· Updated Jul 29, 2026
CVE-2026-54100
CVE-2026-54100
Description
A flaw was found in the Windows Machine Config Operator (WMCO) for Red Hat OpenShift Container Platform. WMCO establishes SSH connections to Windows worker nodes without verifying the remote server host key. An adjacent-network attacker who can intercept or redirect WMCO's SSH session can capture WICD and kubelet bootstrap credentials transferred during node configuration, enabling compromise of Windows node identities in the cluster.
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Affected products
4cpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:redhat:openshift_container_platform:*:*:*:*:*:*:*:*range: >=4.0,<=4.22.1
- (no CPE)
cpe:2.3:a:redhat:windows_machine_config_operator:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:redhat:windows_machine_config_operator:-:*:*:*:*:*:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
4- access.redhat.com/security/cve/CVE-2026-54100nvdVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingVendor Advisory
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54100.jsonnvdVendor Advisory
- access.redhat.com/errata/RHSA-2026:47173nvd
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