---
id: CVE-2026-51773
title: An issue in the VMware datastore driver of OpenStack glance_store
summary: >-
  An issue in the VMware datastore driver of OpenStack glance_store. When an
  authenticated attacker provides a maliciously crafted image location URI
  pointing to an external server, the _retry_request function fails to validate
  the destina…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-918
  - CWE-201
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T17:17:08.900'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-51773'
references:
  - url: 'https://github.com/sadandbset/CVE-2026-51772-CVE-2026-51773'
    label: cve@mitre.org
  - url: >-
      https://github.com/sadandbset/CVE-2026-51772-CVE-2026-51773/blob/main/CVE-2026-51773.md
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-51773.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-51773'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2541405'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-51773'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-51773'
tags:
  - nvd
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-25T16:23:29.856212Z'
ingestedAt: '2026-09-25T13:08:53.486Z'
vendor: Red Hat
product: Red Hat OpenStack Platform 16.2
affected:
  - openstack_platform_13_queens
  - openstack_platform 16.2
  - openstack_platform 17.1
  - openstack_platform 18.0
scores:
  nvd: 8.1
  vendor: 6.5
---

## Overview

An issue in the VMware datastore driver of OpenStack glance_store. When an authenticated attacker provides a maliciously crafted image location URI pointing to an external server, the _retry_request function fails to validate the destination host before attaching sensitive authentication headers.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2, Red Hat OpenStack Platform 17.1, Red Hat OpenStack Platform 18.0 · no fix planned: Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2, Red Hat OpenStack Platform 17.1, Red Hat OpenStack Platform 18.0 · updated 2026-09-25 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-51773.json)