CVEvulnerability
CVE-2021-33571
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-06-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-918
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+..) .
Affected configurations
• djangoproject django (>= 2.2 < 2.2.24)
• djangoproject django (>= 3.0 < 3.1.12)
• djangoproject django (>= 3.2 < 3.2.4)
• fedoraproject fedora 35
Related
Weakness · CWE (1)
- CWE-918 Server-Side Request Forgery weakness
References
- https://docs.djangoproject.com/en/3.2/releases/security/ Patch, Vendor Advisory
- https://github.com/django/django/commit/203d4ab9ebcd72fc4d6eb7398e66ed9e474e118e github.com
- https://github.com/django/django/commit/9f75e2e562fa0c0482f3dde6fc7399a9070b4a3d github.com
- https://github.com/django/django/commit/f27c38ab5d90f68c9dd60cabef248a570c0be8fc github.com
- https://groups.google.com/g/django-announce/c/sPyjSKMi8Eo Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20210727-0004/ Third Party Advisory
- https://www.djangoproject.com/weblog/2021/jun/02/security-releases/ Patch, Vendor Advisory
- https://docs.djangoproject.com/en/3.2/releases/security/ Patch, Vendor Advisory
- https://github.com/django/django/commit/203d4ab9ebcd72fc4d6eb7398e66ed9e474e118e github.com
- https://github.com/django/django/commit/9f75e2e562fa0c0482f3dde6fc7399a9070b4a3d github.com
- https://github.com/django/django/commit/f27c38ab5d90f68c9dd60cabef248a570c0be8fc github.com
- https://groups.google.com/g/django-announce/c/sPyjSKMi8Eo Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20210727-0004/ Third Party Advisory
- https://www.djangoproject.com/weblog/2021/jun/02/security-releases/ Patch, Vendor Advisory