GHSA-vw39-2wj9-4q86

    Dashboard / Vulnerabilities / GHSA-vw39-2wj9-4q86

    GHSA-vw39-2wj9-4q86

    Published: 11 Oct 2022Last Modified: 10 Jun 2026

    Summary: django-mfa2 vulnerable to MFA Replay attack

    Details: mfa/FIDO2.py in django-mfa2 before 2.5.1 and 2.6.x before 2.6.1 allows a replay attack that could be used to register another device for a user. The device registration challenge is not invalidated after usage.

    References: https://nvd.nist.gov/vuln/detail/CVE-2022-42731, https://github.com/mkalioby/django-mfa2/commit/54db5a513bcafa97a36e9f6dfa31d3c61fa8217b, https://github.com/mkalioby/django-mfa2/commit/5fbb505e98ecdd409330a5c336ad5ec49631b0db, https://github.com/mkalioby/django-mfa2, https://github.com/mkalioby/django-mfa2/blob/0936ea253354dd95cb127f09d0efa31324caef27/mfa/FIDO2.py#L58, https://github.com/mkalioby/django-mfa2/releases/tag/v2.5.1-release, https://github.com/mkalioby/django-mfa2/releases/tag/v2.6.1-release, https://github.com/pypa/advisory-database/tree/main/vulns/django-mfa2/PYSEC-2022-303.yaml

    Affected packages

    Package

    Name: django-mfa2

    Purl: pkg:pypi/django-mfa2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.5.1

    Affected versions

    0.8
    0.8.5
    0.8.7
    0.8.8

    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
    GHSA-vw39-2wj9-4q86 | CVE-DB