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Vulnerability record/PUBLISHED/Published Oct 20, 2026 11:09:12 UTC

CVE-2026-113496

A flaw was found in cockpit-machines. When saving Virtual Network Computing (VNC) console settings, the configured password is passed directly as a command-line argument to an underlying system utility. A local unprivileged attacker on a host that allows cross-user process inspection could read the exposed password from the process list while another user modifies settings. This credential disclosure can allow unauthorized access to the guest virtual machine's graphical console.

Base score5.0/ 10
SeverityMediumCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes
Base severityMedium
Attack vectorLocalAV
Attack complexityLowAC
Privileges requiredLowPR
User interactionRequiredUI
ScopeUnchangedS
Confidentiality impactHighC
Integrity impactNoneI
Availability impactNoneA
CVSS vector stringCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authorityredhat
Last updatedOct 30, 2026 07:07:23 UTC
PublishedOct 20, 2026 11:09:12 UTC
ReservedOct 20, 2026 09:12:57 UTC

Credits

  • Red Hat would like to thank Andrey Vasilevsky for reporting this issue.