20.Lock AbstractDigital Circular

It was discovered that in Django 3.2 before 3.2.20, 4 before 4.1.10, and 4.2 before 4.2.3, EmailValidator and URLValidator are subject to a potential ReDoS (regular expression denial of service) attacks via a vast number of domain name labels of emails and URLs (CVE-2023-36053).

This issue could result in loss of access to critical systems and potential system compromise.

An essential update for Django that fixes this dangerous bug is now available. We urge all impacted users to apply the Django updates issued by their distro(s) now to ensure their systems remain accessible.

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