Credential Disclosure in Cockpit Machines by Red Hat
CVE-2026-113496

5MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 9
Vendor
CVE Published:
20 October 2026

What is CVE-2026-113496?

A security flaw in Cockpit Machines allows local unprivileged attackers to potentially expose stored VNC console passwords. When users save VNC console settings, the configured password is transmitted as a command-line argument to a system utility. If cross-user process inspection is enabled, other users on the same host can read the command arguments from the process list, leading to possible unauthorized access to the graphical console of the guest virtual machine. This vulnerability highlights the need for secure handling of sensitive data in command-line operations.

References

https://access.redhat.com/security/cve/CVE-2026-113496
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2556058
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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