CVE-2021-3654: PYSEC-2026-693 - Open Redirect in CPython that affects users of OpenStack Nova

CVE-2021-3654 · Severity: low · CVSS 3.1 · Published 2026-07-02

Open Redirect in CPython that affects users of OpenStack Nova

Technologies: nova (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2021-3654 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-3654 being exploited in the wild.
How severe is CVE-2021-3654?
Low severity, with a CVSS score of 3.1, published 2 July 2026.
Which products and versions are affected?
nova (PyPI) ECOSYSTEM:introduced=0,fixed=21.2.3, ECOSYSTEM:introduced=0,fixed=21.2.3,introduced=22.0.0,fixed=22.2.3,introduced=23.0.0,fixed=23.0.3.
Is there a fix for CVE-2021-3654?
Yes. nova (PyPI): upgrade to 21.2.3, 23.0.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-3654?
Check whether you run nova (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • nova (PyPI): upgrade to 21.2.3, 23.0.3 or later
    pip install "nova>=23.0.3"

Affected products

  • nova (PyPI) ECOSYSTEM:introduced=0,fixed=21.2.3, ECOSYSTEM:introduced=0,fixed=21.2.3,introduced=22.0.0,fixed=22.2.3,introduced=23.0.0,fixed=23.0.3

Identifiers

  • CVE-2021-3654
  • GHSA-vqp6-j452-j6wp
  • PYSEC-2026-693

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