Vulnerability · Published Sep 18, 2026 · Assigned by redhat
CVE-2026-92747Cockpit-machines: cockpit-machines: sensitive data exposure of guest credentials via json argument in process list
Medium 5.0
In plain English
A medium-severity security flaw in Red Hat Enterprise Linux 10 from Red Hat. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | 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 |
| Debian:12 | cockpit-machines | no fix listed | DEBIAN-CVE-2026-92747 |
| Debian:13 | cockpit-machines | no fix listed | DEBIAN-CVE-2026-92747 |
| Debian:14 | cockpit-machines | 357-1 | DEBIAN-CVE-2026-92747 |
| Rocky Linux:10 | cockpit-machines | 0:348.1-1.el10_2 | RLSA-2026:86971 |
| Rocky Linux:9 | cockpit-machines | 0:348.1-1.el9_8 | RLSA-2026:86970 |
| Ubuntu:22.04:LTS | cockpit-machines | no fix listed | UBUNTU-CVE-2026-92747 |
| Ubuntu:24.04:LTS | cockpit-machines | no fix listed | UBUNTU-CVE-2026-92747 |
| Ubuntu:26.04:LTS | cockpit-machines | no fix listed | UBUNTU-CVE-2026-92747 |
| Ubuntu:26.10 | cockpit-machines | no fix listed | UBUNTU-CVE-2026-92747 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
Weakness: CWE-214 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
References
- RHSA-2026:86970 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:86971 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-92747 vdb-entry, x_refsource_REDHAT
- RHBZ#2469260 issue-tracking, x_refsource_REDHAT