RHSA-2026:97238: Important: cockpit-machines security, bug fix, and enhancement update
Cockpit component for managing libvirt virtual machines.Security Fix(es): lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800) lodash: Lodash: Prototype pollution allows deletion of built-in prototype properties via array path bypass (CVE-2026-2950) Bug Fix(es) and Enhancement(s): CentOS 10 host: Can't create Cockpit virtual machine in Firefox, can create it in Chrome (JIRA:RHEL-146122) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Additional Changes:For detailed information on changes in this release, see the Red Hat Enterprise Linux 10 Release Notes linked from the References section.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/cockpit-machinesto a version that resolves this vulnerability.Fixed in 355-1.el10
Event History
Frequently Asked Questions
Which component should administrators prioritize for remediation?
The affected software identified in the advisory is redhat/cockpit-machines, the Cockpit component used to manage libvirt virtual machines.
What vulnerabilities are addressed by this update?
The update addresses CVE-2026-4800, arbitrary code execution through untrusted input in lodash template imports, and CVE-2026-2950, prototype pollution that can delete built-in prototype properties through an array-path bypass.
Does the advisory state whether default installations are vulnerable or provide interim mitigations?
No. The provided advisory data does not describe affected default configurations, exploitation prerequisites, detection steps, or workarounds when patching cannot be performed immediately.