CVE-2021-33571
High
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+..) .
SeverityHigh
CVSS7.5
Exploit probability—
Product
Django
PublishedJun 8, 2021
First seenJun 8, 2021
How to fix
Update
- djangoproject django2.2.24, 3.1.12, 3.2.4 or later
- django2.2.24, 3.1.12, 3.2.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| djangoproject django | 2.2 ≤ v < 2.2.24, 3.0 ≤ v < 3.1.12, 3.2 ≤ v < 3.2.4 | 2.2.24, 3.1.12, 3.2.4 |
| fedoraproject fedora | 35 | — |
| djangoPyPI | 2.2a1 ≤ v < 2.2.24, 3.0a1 ≤ v < 3.1.12, 3.2a1 ≤ v < 3.2.4, 2.2 ≤ v < 2.2.24, 3.0 ≤ v < 3.1.12, 3.2 ≤ v < 3.2.4 | 2.2.24, 3.1.12, 3.2.4 |
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