{"action":"Upgrade django-mfa2 to 2.5.1 or later.","affected":[{"fixed":"2.5.1","introduced":"0"},{"fixed":"2.6.1","introduced":"2.6.0"}],"component":"django-mfa2","cve_ids":["CVE-2022-42731"],"ecosystem":"PyPI","epss":0.01507,"exploited":false,"fixed_versions":["2.5.1","2.6.1"],"ghsa_id":"GHSA-vw39-2wj9-4q86","id":"tcs_01M5KGH3M68A8CVR27V2AK9F1K","modified_at":"2026-06-10T17:00:49.634621035Z","published_at":"2022-10-11T14:15:00Z","references":["https://osv.dev/vulnerability/PYSEC-2022-303","https://github.com/mkalioby/django-mfa2/releases/tag/v2.6.1-release","https://github.com/mkalioby/django-mfa2/releases/tag/v2.5.1-release","https://github.com/mkalioby/django-mfa2/blob/0936ea253354dd95cb127f09d0efa31324caef27/mfa/FIDO2.py#L58","https://github.com/advisories/GHSA-vw39-2wj9-4q86"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"PYSEC-2022-303","url":"https://osv.dev/vulnerability/PYSEC-2022-303"}],"summary":"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 af"}