Medium · CVSS 5.0CVE-2026-92747

Cockpit-machines: cockpit-machines: sensitive data exposure of guest credentials via json argument in process listCVE-2026-92747

Answer in brief

CVE-2026-92747 records a Medium severity (CVSS 5.0) vulnerability in Cockpit-machines: cockpit-machines: sensitive data exposure of guest credentials via json argument in process list. The current sources do not mark it as known exploited. The current feed maps Red Hat/cockpit-machines (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 18, 2026Updated Oct 21, 2026Source checked Nov 2, 2026First seen by HOL Sep 18, 2026Material review Oct 21, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.0
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 5.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/cockpit-machines (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Red Hat/cockpit-machinesgeneric	*	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Red Hat/cockpit-machines.
Review the reported fix. Source-reported workaround: Exposure can be reduced by avoiding VM creation or installation flows that supply rootPassword or userPassword while untrusted local users are active on the host, and by using an alternative provisioning method where one is available. Restricting cross-user process inspection on the host, for example by hardening /proc visibility with the hidepid mount option, also limits the ability of other local users to read the install_machine.py command line. These measures reduce the exposure window but do not remove the underlying issue of credentials being passed in process arguments; they should be treated as temporary risk reduction until a fixed cockpit-machines package is available.

Evidence timeline and material changes

Published upstream
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 18, 2026

Sources and claim methodology

Upstream source description

A flaw was found in `cockpit-machines`. This vulnerability allows a local attacker with the ability to inspect running processes to expose sensitive guest virtual machine (VM) credentials, such as `rootPassword` and `userPassword`. This occurs when the `install_machine.py` script passes these credentials as a JSON command-line argument during VM creation or installation. The exposure is limited to the period when the installation workflow is active and depends on host process-visibility policies.

Quoted source text, attributed separately from HOL analysis.

Package

Affected range

Fixed version

Red Hat/cockpit-machinesgeneric

Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Red Hat/cockpit-machines.

Review the reported fix. Source-reported workaround: Exposure can be reduced by avoiding VM creation or installation flows that supply rootPassword or userPassword while untrusted local users are active on the host, and by using an alternative provisioning method where one is available. Restricting cross-user process inspection on the host, for example by hardening /proc visibility with the hidepid mount option, also limits the ability of other local users to read the install_machine.py command line. These measures reduce the exposure window but do not remove the underlying issue of credentials being passed in process arguments; they should be treated as temporary risk reduction until a fixed cockpit-machines package is available.

Sources and claim methodology

Upstream source description

Quoted source text, attributed separately from HOL analysis.