RHEL 9 : Red Hat OpenStack Services on OpenShift 18.0.18 (openstack-nova) (RHSA-2026:7884)

high Nessus Plugin ID 310913

Synopsis

The remote Red Hat host is missing a security update for Red Hat OpenStack Services on OpenShift 18.0.18 (openstack- nova).

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:7884 advisory.

OpenStack Compute (nova) is open source software designed to provision and manage large networks of virtual machines, creating a redundant and scalable cloud computing platform. It gives you the software, control panels, and APIs required to orchestrate a cloud, including running instances, managing networks, and controlling access through users and projects. OpenStack Compute strives to be both hardware and hypervisor agnostic, currently supporting a variety of standard hardware configurations and seven major hypervisors.

Security Fix(es):

* Arbitrary Host File Overwrite via Unconstrained qemu-img Format Handling in OpenStack Nova (CVE-2026-24708)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in 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 this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL Red Hat OpenStack Services on OpenShift 18.0.18 (openstack-nova) package based on the guidance in RHSA-2026:7884.

Plugin Details

Severity: High

ID: 310913

File Name: redhat-RHSA-2026-7884.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 4/29/2026

Updated: 4/29/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.1

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

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

CVSS Score Source: CVE-2026-24708

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:openstack-nova-common, p-cpe:/a:redhat:enterprise_linux:openstack-nova-compute, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:openstack-nova-scheduler, p-cpe:/a:redhat:enterprise_linux:python3-nova, p-cpe:/a:redhat:enterprise_linux:openstack-nova-novncproxy, p-cpe:/a:redhat:enterprise_linux:openstack-nova, p-cpe:/a:redhat:enterprise_linux:openstack-nova-conductor, p-cpe:/a:redhat:enterprise_linux:openstack-nova-api, p-cpe:/a:redhat:enterprise_linux:openstack-nova-serialproxy, p-cpe:/a:redhat:enterprise_linux:openstack-nova-spicehtml5proxy, p-cpe:/a:redhat:enterprise_linux:openstack-nova-migration

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: 4/29/2026

Vulnerability Publication Date: 2/18/2026

Reference Information

CVE: CVE-2026-24708

CWE: 73

RHSA: 2026:7884

Detections

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