Red Hat Enterprise Linux cockpit-machines information disclosure

Summaryinfo

A vulnerability classified as problematic was found in Red Hat Enterprise Linux. This impacts an unknown function of the component cockpit-machines. The manipulation results in information disclosure. This vulnerability is reported as CVE-2026-113496. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability was found in Red Hat Enterprise Linux (version unknown). It has been classified as problematic. Affected is an unknown function of the component cockpit-machines. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

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.

The advisory is shared for download at access.redhat.com. This vulnerability is traded as CVE-2026-113496 since 10/20/2026. The exploitability is told to be easy. The attack needs to be approached locally. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/20/2026). The MITRE ATT&CK project declares the attack technique as T1592.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Red Hat

Name

• Enterprise Linux

License

• commercial

Website

• Vendor: https://www.redhat.com/

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