cvedb.io
CVE-2021-33571
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2021-06-08T18:15:08.517 · Last modified 2026-06-17T03:54:48.600

Summary

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 products

djangoproject — django

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.