RHCOS 4 : OpenShift Container Platform 4.20.36 (RHSA-2026:60444)

high Nessus Plugin ID 342233

Synopsis

The remote Red Hat CoreOS host is missing one or more security updates for OpenShift Container Platform 4.20.36.

Description

The remote Red Hat Enterprise Linux CoreOS 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:60444 advisory.

- github.com/cri-o/cri-o: Fix Bypass for CVE-2022-4318 /etc/passwd Injection via HOME env (CVE-2026-15809)

- github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object (CVE-2026-34986)

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 4.20.36 packages based on the guidance in RHSA-2026:60444.

Plugin Details

Severity: High

ID: 342233

File Name: rhcos-RHSA-2026-60444.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/1/2026

Updated: 9/1/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.74

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-15809

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:9:coreos, p-cpe:/a:redhat:enterprise_linux:cri-o

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: 9/1/2026

Vulnerability Publication Date: 4/3/2026

Reference Information

CVE: CVE-2026-15809, CVE-2026-34986

CWE: 131, 134

RHSA: 2026:60444

Detections

Analytics