Bug 2487953 (CVE-2026-54100) - CVE-2026-54100 windows-machine-config-operator: windows-machine-config-operator: SSH host key not verified enables credential theft
Summary: CVE-2026-54100 windows-machine-config-operator: windows-machine-config-operat...
Keywords:
Status: NEW
Alias: CVE-2026-54100
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-11 17:29 UTC by OSIDB Bzimport
Modified: 2026-06-22 12:44 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-06-11 17:29:36 UTC
Windows Machine Config Operator (WMCO) opens SSH sessions to Windows worker nodes without validating the remote server identity. Sensitive node configuration material is transferred over those sessions during normal reconciliation. If an attacker can position themselves on the network path between WMCO and the intended Windows node, they may be able to impersonate the node and obtain credentials WMCO delivers during configuration.


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