{"id":"PYSEC-2022-303","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.","aliases":["CVE-2022-42731","GHSA-vw39-2wj9-4q86"],"modified":"2026-06-10T17:00:52.233678079Z","published":"2022-10-11T14:15:00Z","references":[{"type":"WEB","url":"https://github.com/mkalioby/django-mfa2/releases/tag/v2.6.1-release"},{"type":"WEB","url":"https://github.com/mkalioby/django-mfa2/releases/tag/v2.5.1-release"},{"type":"EVIDENCE","url":"https://github.com/mkalioby/django-mfa2/blob/0936ea253354dd95cb127f09d0efa31324caef27/mfa/FIDO2.py#L58"},{"type":"WEB","url":"https://github.com/mkalioby/django-mfa2/blob/0936ea253354dd95cb127f09d0efa31324caef27/mfa/FIDO2.py#L58"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-vw39-2wj9-4q86"}],"affected":[{"package":{"name":"django-mfa2","ecosystem":"PyPI","purl":"pkg:pypi/django-mfa2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.1"},{"introduced":"2.6.0"},{"fixed":"2.6.1"}]}],"versions":["0.8","0.8.5","0.8.7","0.8.8","0.9.0","0.9.1","0.9.2","0.9.4","0.9.5","1.0","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5","1.1","1.1.1","1.1.2","1.1.5","1.1.6","1.1.7","1.1.8","1.1.8.1","1.2.0","1.2.1","1.3.0","1.4.0","1.4.1","1.5.0","1.6","1.7.0","1.7.10","1.7.11","1.7.12","1.7.13","1.7.5","1.7.6","1.7.7","1.7.8","1.7.9","1.8.0","1.8.1","1.9.0","2.0.0","2.0.1","2.0.2","2.0.3","2.0.4","2.0.5","2.0.6","2.1.0","2.1.2","2.1.2b1","2.2.0","2.2.0b1","2.2.0b2","2.3.0","2.4.0","2.5.0","2.5.0b1","2.5.0b2","2.6.0"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/django-mfa2/PYSEC-2022-303.yaml"}}],"schema_version":"1.7.5"}