RHEL 10 : cockpit-machines (RHSA-2026:97238)

critical Nessus Plugin ID 378214

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:97238 advisory.

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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected cockpit-machines package.

See Also

https://access.redhat.com/errata/RHSA-2026:97238

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2453496

https://bugzilla.redhat.com/show_bug.cgi?id=2453499

https://issues.redhat.com/browse/RHEL-146122

http://www.nessus.org/u?aa9dbcbc

http://www.nessus.org/u?ffb42430

Plugin Details

Severity: Critical

ID: 378214

File Name: redhat-RHSA-2026-97238.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 11/10/2026

Updated: 11/10/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.51

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-4800

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:10.3, p-cpe:/a:redhat:enterprise_linux:cockpit-machines

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/10/2026

Vulnerability Publication Date: 3/31/2026

Reference Information

CVE: CVE-2026-2950, CVE-2026-4800

CWE: 915, 94

RHSA: 2026:97238