RHCOS 4 : OpenShift Container Platform 4.16.70 (RHSA-2026:62548)

high Nessus Plugin ID 344538

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Synopsis

The remote Red Hat CoreOS host is missing one or more security updates for OpenShift Container Platform 4.16.70.

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-2026:62548 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 4.16.70 packages based on the guidance in RHSA-2026:62548.

Plugin Details

Severity: High

ID: 344538

File Name: rhcos-RHSA-2026-62548.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/10/2026

Updated: 9/11/2026

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: Medium

Score: 5

Percentile: 93.74

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-34986

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

CVSS Score Source: CVE-2026-15809

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8:coreos, 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: 9/10/2026

Vulnerability Publication Date: 4/3/2026

Reference Information

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

CWE: 131, 134

RHSA: 2026:62548

Detections

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