CVE-2023-36053

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.

• CWE-1333
• CWE-1333

• https://docs.djangoproject.com/en/4.2/releases/security/Release Notes
• https://groups.google.com/forum/#%21forum/django-announcePermissions Required
• https://lists.debian.org/debian-lts-announce/2023/07/msg00022.htmlMailing List
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NRDGTUN4LTI6HG4TWR3JYLSFVXPZT42A/Mailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5DYKPNDCEHJQ3TKPJQO7QGSR4FAYMS/Mailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/
• https://www.debian.org/security/2023/dsa-5465Third Party Advisory
• https://www.djangoproject.com/weblog/2023/jul/03/security-releases/Patch, Vendor Advisory
• https://docs.djangoproject.com/en/4.2/releases/security/Release Notes
• https://groups.google.com/forum/#%21forum/django-announcePermissions Required
• https://lists.debian.org/debian-lts-announce/2023/07/msg00022.htmlMailing List
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NRDGTUN4LTI6HG4TWR3JYLSFVXPZT42A/Mailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5DYKPNDCEHJQ3TKPJQO7QGSR4FAYMS/Mailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/
• https://www.debian.org/security/2023/dsa-5465Third Party Advisory
• https://www.djangoproject.com/weblog/2023/jul/03/security-releases/Patch, Vendor Advisory

Published

Jul 3, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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