CVE-2023-36053

7.5 HIGH

Published: July 03, 2023 Modified: November 04, 2025

Description

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) attack via a very large number of domain name labels of emails and URLs.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://docs.djangoproject.com/en/4.2/releases/security/

Source: cve@mitre.org

Release Notes

https://groups.google.com/forum/#%21forum/django-announce

Source: cve@mitre.org

Permissions Required

https://lists.debian.org/debian-lts-announce/2023/07/msg00022.html

Source: cve@mitre.org

Mailing List

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NRDGTUN4LTI6HG4TWR3JYLSFVXPZT42A/

Source: cve@mitre.org

Mailing List Third Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5DYKPNDCEHJQ3TKPJQO7QGSR4FAYMS/

Source: cve@mitre.org

Mailing List Third Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/

Source: cve@mitre.org

https://www.debian.org/security/2023/dsa-5465

Source: cve@mitre.org

Third Party Advisory

https://www.djangoproject.com/weblog/2023/jul/03/security-releases/

Source: cve@mitre.org

Patch Vendor Advisory

https://docs.djangoproject.com/en/4.2/releases/security/