CVE-2021-38155: PYSEC-2026-830 - OpenStack Keystone allows information disclosure during account locking

CVE-2021-38155 · Severity: low · CVSS 3.1 · Published 2026-07-06

OpenStack Keystone allows information disclosure during account locking

Technologies: keystone (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2021-38155 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-38155 being exploited in the wild.
How severe is CVE-2021-38155?
Low severity, with a CVSS score of 3.1, published 6 July 2026.
Which products and versions are affected?
keystone (PyPI) ECOSYSTEM:introduced=10.0,fixed=16.0.2, ECOSYSTEM:introduced=10.0,fixed=16.0.2,introduced=17.0,fixed=17.0.1,introduced=18.0,fixed=18.0.1,introduced=19.0,fixed=19.0.1.
Is there a fix for CVE-2021-38155?
Yes. keystone (PyPI): upgrade to 16.0.2, 19.0.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-38155?
Check whether you run keystone (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

  • keystone (PyPI): upgrade to 16.0.2, 19.0.1 or later
    pip install "keystone>=19.0.1"

Affected products

  • keystone (PyPI) ECOSYSTEM:introduced=10.0,fixed=16.0.2, ECOSYSTEM:introduced=10.0,fixed=16.0.2,introduced=17.0,fixed=17.0.1,introduced=18.0,fixed=18.0.1,introduced=19.0,fixed=19.0.1

Identifiers

  • CVE-2021-38155
  • GHSA-4225-97pr-rr52
  • PYSEC-2026-830

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