{"id":"CVE-2021-33571","state":"PUBLISHED","title":"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 oct","description":"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+..) .","publishedAt":"2021-06-08T00:00:00.000Z","updatedAt":"2024-08-03T23:50:43.143Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://docs.djangoproject.com/en/3.2/releases/security/","https://groups.google.com/g/django-announce/c/sPyjSKMi8Eo","https://www.djangoproject.com/weblog/2021/jun/02/security-releases/","https://security.netapp.com/advisory/ntap-20210727-0004/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/","https://github.com/django/django/commit/f27c38ab5d90f68c9dd60cabef248a570c0be8fc","https://github.com/django/django/commit/203d4ab9ebcd72fc4d6eb7398e66ed9e474e118e","https://github.com/django/django/commit/9f75e2e562fa0c0482f3dde6fc7399a9070b4a3d"],"weaknesses":[],"ingestedAt":"2026-10-29T19:48:36.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/33xxx/CVE-2021-33571.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-33571","state":"PUBLISHED","datePublished":"2021-06-08T00:00:00.000Z","dateUpdated":"2024-08-03T23:50:43.143Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-05-25T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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+..) ."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://docs.djangoproject.com/en/3.2/releases/security/"},{"url":"https://groups.google.com/g/django-announce/c/sPyjSKMi8Eo"},{"url":"https://www.djangoproject.com/weblog/2021/jun/02/security-releases/"},{"url":"https://security.netapp.com/advisory/ntap-20210727-0004/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/","name":"FEDORA-2022-e7fd530688","tags":["vendor-advisory"]},{"url":"https://github.com/django/django/commit/f27c38ab5d90f68c9dd60cabef248a570c0be8fc"},{"url":"https://github.com/django/django/commit/203d4ab9ebcd72fc4d6eb7398e66ed9e474e118e"},{"url":"https://github.com/django/django/commit/9f75e2e562fa0c0482f3dde6fc7399a9070b4a3d"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2023-12-07T22:09:18.547Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://docs.djangoproject.com/en/3.2/releases/security/","tags":["x_transferred"]},{"url":"https://groups.google.com/g/django-announce/c/sPyjSKMi8Eo","tags":["x_transferred"]},{"url":"https://www.djangoproject.com/weblog/2021/jun/02/security-releases/","tags":["x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20210727-0004/","tags":["x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/","name":"FEDORA-2022-e7fd530688","tags":["vendor-advisory","x_transferred"]},{"url":"https://github.com/django/django/commit/f27c38ab5d90f68c9dd60cabef248a570c0be8fc","tags":["x_transferred"]},{"url":"https://github.com/django/django/commit/203d4ab9ebcd72fc4d6eb7398e66ed9e474e118e","tags":["x_transferred"]},{"url":"https://github.com/django/django/commit/9f75e2e562fa0c0482f3dde6fc7399a9070b4a3d","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T23:50:43.143Z"}}]}}}