CVE-2021-41265

    Dashboard / Vulnerabilities / CVE-2021-41265

    CVE-2021-41265

    Published: 9 Dec 2021Last Modified: 9 Jul 2026

    Summary:

    Details: Flask-AppBuilder is a development framework built on top of Flask. Verions prior to 3.3.4 contain an improper authentication vulnerability in the REST API. The issue allows for a malicious actor with a carefully crafted request to successfully authenticate and gain access to existing protected REST API endpoints. This only affects non database authentication types and new REST API endpoints. Users should upgrade to Flask-AppBuilder 3.3.4 to receive a patch.

    References: https://github.com/dpgaspar/Flask-AppBuilder/releases/tag/v3.3.4, https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-m3rf-7m4w-r66q, https://github.com/dpgaspar/Flask-AppBuilder/commit/eba517aab121afa3f3f2edb011ec6bc4efd61fbc

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -4f7ca85bd1800e6eb5b5879aa16b18872d6b8e96

    Affected versions

    v3.3.3
    v3.3.2
    v3.3.1
    v3.3.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-41265 | CVE-DB