{"schema_version":"1.7.5","id":"PYSEC-2023-100","published":"2023-07-03T13:15:00Z","modified":"2026-06-10T17:01:02.152157540Z","aliases":["BIT-django-2023-36053","CVE-2023-36053","GHSA-jh3w-4vvf-mjgr"],"details":"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.","affected":[{"package":{"name":"django","ecosystem":"PyPI","purl":"pkg:pypi/django"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2"},{"fixed":"4.2.3"},{"introduced":"4.0"},{"fixed":"4.1.10"},{"introduced":"3.2"},{"fixed":"3.2.20"}]}],"versions":["3.2","3.2.1","3.2.10","3.2.11","3.2.12","3.2.13","3.2.14","3.2.15","3.2.16","3.2.17","3.2.18","3.2.19","3.2.2","3.2.3","3.2.4","3.2.5","3.2.6","3.2.7","3.2.8","3.2.9","4.0","4.0.1","4.0.10","4.0.2","4.0.3","4.0.4","4.0.5","4.0.6","4.0.7","4.0.8","4.0.9","4.1","4.1.1","4.1.2","4.1.3","4.1.4","4.1.5","4.1.6","4.1.7","4.1.8","4.1.9","4.1a1","4.1b1","4.1rc1","4.2","4.2.1","4.2.2"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/django/PYSEC-2023-100.yaml"}}],"references":[{"type":"FIX","url":"https://www.djangoproject.com/weblog/2023/jul/03/security-releases/"},{"type":"ADVISORY","url":"https://www.djangoproject.com/weblog/2023/jul/03/security-releases/"},{"type":"WEB","url":"https://docs.djangoproject.com/en/4.2/releases/security/"},{"type":"WEB","url":"https://groups.google.com/forum/#!forum/django-announce"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-jh3w-4vvf-mjgr"}]}