{"id":"PYSEC-2021-99","details":"In Django 2.2 before 2.2.24, 3.x before 3.1.12, and 3.2 before 3.2.4, URLValidator, validate_ipv4_address, and validate_ipv46_address do not prohibit leading zero characters in octal literals. This may allow a bypass of access control that is based on IP addresses. (validate_ipv4_address and validate_ipv46_address are unaffected with Python 3.9.5+..) .","aliases":["BIT-django-2021-33571","CVE-2021-33571","GHSA-p99v-5w3c-jqq9"],"modified":"2023-12-06T00:46:15.225034Z","published":"2021-06-08T18:15:00Z","references":[{"type":"WEB","url":"https://groups.google.com/g/django-announce/c/sPyjSKMi8Eo"},{"type":"WEB","url":"https://docs.djangoproject.com/en/3.2/releases/security/"},{"type":"ARTICLE","url":"https://www.djangoproject.com/weblog/2021/jun/02/security-releases/"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-p99v-5w3c-jqq9"}],"affected":[{"package":{"name":"django","ecosystem":"PyPI","purl":"pkg:pypi/django"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.2"},{"fixed":"2.2.24"},{"introduced":"3.0"},{"fixed":"3.1.12"},{"introduced":"3.2"},{"fixed":"3.2.4"}]}],"versions":["2.2","2.2.1","2.2.10","2.2.11","2.2.12","2.2.13","2.2.14","2.2.15","2.2.16","2.2.17","2.2.18","2.2.19","2.2.2","2.2.20","2.2.21","2.2.22","2.2.23","2.2.3","2.2.4","2.2.5","2.2.6","2.2.7","2.2.8","2.2.9","3.0","3.0.1","3.0.10","3.0.11","3.0.12","3.0.13","3.0.14","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.0.7","3.0.8","3.0.9","3.1","3.1.1","3.1.10","3.1.11","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7","3.1.8","3.1.9","3.1a1","3.1b1","3.1rc1","3.2","3.2.1","3.2.2","3.2.3"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/django/PYSEC-2021-99.yaml"}}],"schema_version":"1.7.3"}