RHEL 9 : Red Hat OpenStack Services on OpenShift 18.0 (openstack-glance) (RHSA-2026:39812)

high Nessus Plugin ID 327053

Synopsis

The remote Red Hat host is missing a security update for Red Hat OpenStack Services on OpenShift 18.0 (openstack- glance).

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:39812 advisory.

OpenStack Image Service (code-named Glance) provides discovery, registration, and delivery services for virtual disk images. The Image Service API server provides a standard REST interface for querying information about virtual disk images stored in a variety of back-end stores, including OpenStack Object Storage. Clients can register new virtual disk images with the Image Service, query for information on publicly available disk images, and use the Image Service's client library for streaming virtual disk images.

Security Fix(es):

* openstack-glance: OpenStack Glance Unvalidated URI Fetch in OVF Processing (SSRF) ()

* openstack-glance: OpenStack Glance Redirect Validation Bypass in glance-download Import (SSRF) ()

* OpenStack Glance: Server-Side Request Forgery leading to unauthorized internal network access (CVE-2026-34881)

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 (openstack-glance) package based on the guidance in RHSA-2026:39812.

Plugin Details

Severity: High

ID: 327053

File Name: redhat-RHSA-2026-39812.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/15/2026

Updated: 7/15/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 52

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2026-34881

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:python3-glance, p-cpe:/a:redhat:enterprise_linux:openstack-glance, cpe:/o:redhat:enterprise_linux:9

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: 7/15/2026

Vulnerability Publication Date: 3/31/2026

Reference Information

CVE: CVE-2026-34881

CWE: 918

RHSA: 2026:39812

Detections

Analytics