---
id: CVE-2024-40767
aliases:
  - GHSA-rm86-h44c-2r2m
  - PYSEC-2026-1709
title: >-
  OpenStack Nova vulnerable to unauthorized access to potentially sensitive
  data 
summary: >-
  OpenStack Nova vulnerable to unauthorized access to potentially sensitive
  data 
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
vendor: nova
product: nova
ecosystem: pip
affected:
  - nova <= 27.4.0
  - 'nova >= 28.0.0, <= 28.2.0'
  - 'nova >= 29.0.0, <= 29.1.0'
published: '2024-07-24'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-rm86-h44c-2r2m'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2024-40767'
  - url: 'https://github.com/openstack/nova'
  - url: 'https://launchpad.net/bugs/2071734'
  - url: 'https://lists.debian.org/debian-lts-announce/2024/09/msg00017.html'
  - url: 'https://review.opendev.org/c/openstack/nova/+/924731'
  - url: 'https://security.openstack.org'
  - url: 'https://security.openstack.org/ossa/OSSA-2024-002.html'
  - url: 'https://www.openwall.com/lists/oss-security/2024/07/23/2'
tags:
  - osv
  - pip
epss: 0.00941
epssPercentile: 0.59283
ingestedAt: '2026-07-08T18:25:52.968Z'
---

## Overview

In OpenStack Nova before 27.4.1, 28 before 28.2.1, and 29 before 29.1.1, by supplying a raw format image that is actually a crafted QCOW2 image with a backing file path or VMDK flat image with a descriptor file path, an authenticated user may convince systems to return a copy of the referenced file's contents from the server, resulting in unauthorized access to potentially sensitive data. All Nova deployments are affected. NOTE: this issue exists because of an incomplete fix for CVE-2022-47951 and CVE-2024-32498.

## Affected packages

- `nova <= 27.4.0`
- `nova >= 28.0.0, <= 28.2.0`
- `nova >= 29.0.0, <= 29.1.0`

## Remediation

Refer to the advisory for the patched release.