RHEL 9 : Red Hat OpenStack Platform 17.1 security advisory (Important) (RHSA-2026:66401)

critical Nessus Plugin ID 344635

Synopsis

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

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:66401 advisory.

Red Hat OpenStack Platform provides the facilities for building, deploying and monitoring a private or public infrastructure-as-a-service (IaaS) cloud running on commonly available physical hardware.

Security Fix(es):

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

* net/url: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726)

* Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)

* crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)

* golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283)

* crypto/tls: Incorrect certificate validation during TLS session resumption (CVE-2025-68121)

* internal/syscall/unix: Root.Chmod can follow symlinks out of the root (CVE-2026-32282)

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 these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 344635

File Name: redhat-RHSA-2026-66401.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/10/2026

Updated: 9/10/2026

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: 5.7

Percentile: 96.04

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-2025-68121

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/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:9, p-cpe:/a:redhat:enterprise_linux:ansible-collection-ansible-posix, p-cpe:/a:redhat:enterprise_linux:ansible-collections-openstack, p-cpe:/a:redhat:enterprise_linux:collectd-sensubility, p-cpe:/a:redhat:enterprise_linux:erlang-asn1, p-cpe:/a:redhat:enterprise_linux:erlang-compiler, p-cpe:/a:redhat:enterprise_linux:erlang-crypto, p-cpe:/a:redhat:enterprise_linux:erlang-eldap, p-cpe:/a:redhat:enterprise_linux:erlang-erts, p-cpe:/a:redhat:enterprise_linux:erlang-inets, p-cpe:/a:redhat:enterprise_linux:erlang-kernel, p-cpe:/a:redhat:enterprise_linux:erlang-mnesia, p-cpe:/a:redhat:enterprise_linux:erlang-os_mon, p-cpe:/a:redhat:enterprise_linux:erlang-parsetools, p-cpe:/a:redhat:enterprise_linux:erlang-public_key, p-cpe:/a:redhat:enterprise_linux:erlang-runtime_tools, p-cpe:/a:redhat:enterprise_linux:erlang-sasl, p-cpe:/a:redhat:enterprise_linux:erlang-snmp, p-cpe:/a:redhat:enterprise_linux:erlang-ssl, p-cpe:/a:redhat:enterprise_linux:erlang-stdlib, p-cpe:/a:redhat:enterprise_linux:erlang-syntax_tools, p-cpe:/a:redhat:enterprise_linux:erlang-tools, p-cpe:/a:redhat:enterprise_linux:erlang-xmerl, p-cpe:/a:redhat:enterprise_linux:erlang, p-cpe:/a:redhat:enterprise_linux:etcd, p-cpe:/a:redhat:enterprise_linux:octavia-amphora-image-fips-x86_64, p-cpe:/a:redhat:enterprise_linux:octavia-amphora-image-x86_64, p-cpe:/a:redhat:enterprise_linux:openstack-cinder, p-cpe:/a:redhat:enterprise_linux:openstack-dashboard, p-cpe:/a:redhat:enterprise_linux:openstack-heat-api-cfn, p-cpe:/a:redhat:enterprise_linux:openstack-heat-api, p-cpe:/a:redhat:enterprise_linux:openstack-heat-common, p-cpe:/a:redhat:enterprise_linux:openstack-heat-engine, p-cpe:/a:redhat:enterprise_linux:openstack-heat-monolith, p-cpe:/a:redhat:enterprise_linux:openstack-heat, 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-python-agent, p-cpe:/a:redhat:enterprise_linux:openstack-ironic, p-cpe:/a:redhat:enterprise_linux:openstack-keystone, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-common, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-linuxbridge, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-macvtap-agent, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-metering-agent, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-ml2, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-openvswitch, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-ovn-metadata-agent, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-ovn-migration-tool, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-rpc-server, p-cpe:/a:redhat:enterprise_linux:openstack-neutron-sriov-nic-agent, p-cpe:/a:redhat:enterprise_linux:openstack-neutron, p-cpe:/a:redhat:enterprise_linux:openstack-nova-api, p-cpe:/a:redhat:enterprise_linux:openstack-nova-common, p-cpe:/a:redhat:enterprise_linux:openstack-nova-compute, p-cpe:/a:redhat:enterprise_linux:openstack-nova-conductor, p-cpe:/a:redhat:enterprise_linux:openstack-nova-migration, p-cpe:/a:redhat:enterprise_linux:openstack-nova-novncproxy, p-cpe:/a:redhat:enterprise_linux:openstack-nova-scheduler, 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, p-cpe:/a:redhat:enterprise_linux:openstack-selinux, p-cpe:/a:redhat:enterprise_linux:openstack-swift-account, p-cpe:/a:redhat:enterprise_linux:openstack-swift-container, p-cpe:/a:redhat:enterprise_linux:openstack-swift-object, p-cpe:/a:redhat:enterprise_linux:openstack-swift-proxy, p-cpe:/a:redhat:enterprise_linux:openstack-swift, p-cpe:/a:redhat:enterprise_linux:openstack-tripleo-heat-templates, p-cpe:/a:redhat:enterprise_linux:os-net-config, p-cpe:/a:redhat:enterprise_linux:puppet-rabbitmq, p-cpe:/a:redhat:enterprise_linux:puppet-tripleo, p-cpe:/a:redhat:enterprise_linux:python-cinder-tests-tempest, p-cpe:/a:redhat:enterprise_linux:python-django-horizon, p-cpe:/a:redhat:enterprise_linux:python-glance-store, p-cpe:/a:redhat:enterprise_linux:python-os-brick, p-cpe:/a:redhat:enterprise_linux:python-oslo-messaging, p-cpe:/a:redhat:enterprise_linux:python-oslo-serialization, p-cpe:/a:redhat:enterprise_linux:python-ovsdbapp, p-cpe:/a:redhat:enterprise_linux:python3-cinder-common, p-cpe:/a:redhat:enterprise_linux:python3-cinder-tests-tempest, p-cpe:/a:redhat:enterprise_linux:python3-cinder, p-cpe:/a:redhat:enterprise_linux:python3-django-horizon, p-cpe:/a:redhat:enterprise_linux:python3-glance-store, p-cpe:/a:redhat:enterprise_linux:python3-ironic-python-agent, p-cpe:/a:redhat:enterprise_linux:python3-keystone, p-cpe:/a:redhat:enterprise_linux:python3-neutron, p-cpe:/a:redhat:enterprise_linux:python3-nova, p-cpe:/a:redhat:enterprise_linux:python3-os-brick, p-cpe:/a:redhat:enterprise_linux:python3-oslo-messaging, p-cpe:/a:redhat:enterprise_linux:python3-oslo-serialization, p-cpe:/a:redhat:enterprise_linux:python3-ovsdbapp, p-cpe:/a:redhat:enterprise_linux:python3-swift, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-all, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-base, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-fips-x86_64, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-ipa-fips-x86_64, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-ipa-x86_64, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-metadata, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-minimal-fips, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-minimal, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-multirhel-x86_64, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-uefi-fips-x86_64, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-uefi-x86_64, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images-x86_64, p-cpe:/a:redhat:enterprise_linux:rhosp-director-images, p-cpe:/a:redhat:enterprise_linux:tripleo-ansible

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: 9/10/2026

Vulnerability Publication Date: 1/22/2026

Reference Information

CVE: CVE-2025-61726, CVE-2025-68121, CVE-2026-24708, CVE-2026-25679, CVE-2026-32280, CVE-2026-32282, CVE-2026-32283

CWE: 1286, 367, 73, 764, 770

RHSA: 2026:66401

Detections

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