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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | cockpit-machines | 357-1 | — |
| Debian 13 | cockpit-machines | No fix yet | — |
| Debian 12 | cockpit-machines | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | cockpit-machines | No fix yet | — |
| Ubuntu 26.04 LTS | cockpit-machines | No fix yet | — |
| Ubuntu 24.04 LTS | cockpit-machines | No fix yet | — |
| Ubuntu 22.04 LTS | cockpit-machines | No fix yet | — |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | cockpit-machines | 348.1-1.el10_2 | ALSA-2026:86971 |
| AlmaLinux 9 | cockpit-machines | 348.1-1.el9_8 | ALSA-2026:86970 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | cockpit-machines | 348.1-1.el10_2 | RLSA-2026:98562, RLSA-2026:86971 |
| Rocky Linux 9 | cockpit-machines | 348.1-1.el9_8 | RLSA-2026:98459, RLSA-2026:86970 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | cockpit-machines | 348.1-1.0.1.el10_2 | ELSA-2026-86971 |
| Oracle Linux 9 | cockpit-machines | 348.1-1.0.1.el9_8 | ELSA-2026-86970 |
Advisories 9
- RLSA-2026:98562 Moderate: cockpit-machines security update Rocky Linux Security Advisories · Nov 13, 2026
- RLSA-2026:98459 Moderate: cockpit-machines security update Rocky Linux Security Advisories · Nov 13, 2026
- WID-SEC-2026-4118 Red Hat Enterprise Linux cockpit-machines: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen BSI CERT-Bund (WID) · Nov 11, 2026
- ALSA-2026:86970 Moderate: cockpit-machines security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:86971 Moderate: cockpit-machines security update AlmaLinux Security Advisories · Oct 29, 2026
- RLSA-2026:86971 Moderate: cockpit-machines security update Rocky Linux Security Advisories · Oct 22, 2026
- RLSA-2026:86970 Moderate: cockpit-machines security update Rocky Linux Security Advisories · Oct 22, 2026
- ELSA-2026-86970 Moderate: cockpit-machines security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 22, 2026
- ELSA-2026-86971 Moderate: cockpit-machines security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Oct 21, 2026
References
- RHSA-2026:86970 vendor-advisory
- RHSA-2026:86971 vendor-advisory
- RHSA-2026:98459 vendor-advisory
- RHSA-2026:98562 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-92747 vdb-entry
- RHBZ#2469260 issue-tracking