RHCOS 4 : OpenShift Container Platform 4.12.102 (RHSA-2026:90271)

medium Nessus Plugin ID 373523

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Synopsis

The remote Red Hat CoreOS host is missing one or more security updates for OpenShift Container Platform 4.12.102.

Description

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:90271 advisory.

- openstack-ironic: Prevent rehoming resources to nodes with different owner (CVE-2026-44918)

- crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates (CVE-2026-111943)

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 RHCOS OpenShift Container Platform 4.12.102 packages based on the guidance in RHSA-2026:90271.

Plugin Details

Severity: Medium

ID: 373523

File Name: rhcos-RHSA-2026-90271.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 10/29/2026

Updated: 10/29/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

Percentile: 98.16

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.7

Temporal Score: 5.7

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

CVSS Score Source: CVE-2026-44918

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8:coreos, cpe:/o:redhat:enterprise_linux:9:coreos, p-cpe:/a:redhat:enterprise_linux:ignition-validate, p-cpe:/a:redhat:enterprise_linux:ignition, p-cpe:/a:redhat:enterprise_linux:openstack-ironic-api, p-cpe:/a:redhat:enterprise_linux:openstack-ironic-common, p-cpe:/a:redhat:enterprise_linux:openstack-ironic-conductor, p-cpe:/a:redhat:enterprise_linux:openstack-ironic-dnsmasq-tftp-server, p-cpe:/a:redhat:enterprise_linux:openstack-ironic, p-cpe:/a:redhat:enterprise_linux:python3-ironic-tests

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2026

Vulnerability Publication Date: 7/10/2026

Reference Information

CVE: CVE-2026-111943, CVE-2026-44918

CWE: 1220, 295

RHSA: 2026:90271

Detections

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