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  5. CVE-2021-41265

CVE-2021-41265: Improper Authentication in Flask-AppBuilder

December 9, 2021 (updated March 7, 2025)

Improper authentication on the REST API. Allows for a malicious actor with a carefully crafted request to successfully authenticate and gain access to existing protected REST API endpoints. Only affects non database authentication types, and new REST API endpoints.

References

  • github.com/advisories/GHSA-m3rf-7m4w-r66q
  • github.com/dpgaspar/Flask-AppBuilder
  • github.com/dpgaspar/Flask-AppBuilder/commit/eba517aab121afa3f3f2edb011ec6bc4efd61fbc
  • github.com/dpgaspar/Flask-AppBuilder/releases/tag/v3.3.4
  • github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-m3rf-7m4w-r66q
  • github.com/pypa/advisory-database/tree/main/vulns/flask-appbuilder/PYSEC-2021-851.yaml
  • nvd.nist.gov/vuln/detail/CVE-2021-41265

Code Behaviors & Features

Detect and mitigate CVE-2021-41265 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 3.3.4

Fixed versions

  • 3.3.4

Solution

Upgrade to version 3.3.4 or above.

Impact 8.1 HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-287: Improper Authentication

Source file

pypi/Flask-AppBuilder/CVE-2021-41265.yml

Spotted a mistake? Edit the file on GitLab.

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