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Servers and applications

CVE-2021-29621

Flask-AppBuilder is a development framework, built on top of Flask. User enumeration in database authentication in Flask-AppBuilder <= 3.2.3. Allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Upgrade to version 3.3.0 or higher to resolve.

Severity
Medium 5.3
Published
7 Jun 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Apache AirflowServers and applications · cpe:a:apache:airflow
  • Version 1.10.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-29621
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-29621