{"schema_version":"1.7.3","id":"GHSA-jh3w-4vvf-mjgr","published":"2023-07-03T15:30:45Z","modified":"2025-11-04T19:59:10.496692Z","aliases":["BIT-django-2023-36053","CVE-2023-36053","PYSEC-2023-100"],"summary":"Django has regular expression denial of service vulnerability in EmailValidator/URLValidator","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":"3.2a1"},{"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","3.2a1","3.2b1","3.2rc1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-jh3w-4vvf-mjgr/GHSA-jh3w-4vvf-mjgr.json"}},{"package":{"name":"django","ecosystem":"PyPI","purl":"pkg:pypi/django"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0a1"},{"fixed":"4.1.10"}]}],"versions":["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","4.0a1","4.0b1","4.0rc1","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"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-jh3w-4vvf-mjgr/GHSA-jh3w-4vvf-mjgr.json"}},{"package":{"name":"django","ecosystem":"PyPI","purl":"pkg:pypi/django"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2a1"},{"fixed":"4.2.3"}]}],"versions":["4.2","4.2.1","4.2.2","4.2a1","4.2b1","4.2rc1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-jh3w-4vvf-mjgr/GHSA-jh3w-4vvf-mjgr.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-36053"},{"type":"WEB","url":"https://github.com/django/django/commit/454f2fb93437f98917283336201b4048293f7582"},{"type":"WEB","url":"https://github.com/django/django/commit/ad0410ec4f458aa39803e5f6b9a3736527062dcd"},{"type":"WEB","url":"https://github.com/django/django/commit/b7c5feb35a31799de6e582ad6a5a91a9de74e0f9"},{"type":"WEB","url":"https://github.com/django/django/commit/beb3f3d55940d9aa7198bf9d424ab74e873aec3d"},{"type":"WEB","url":"https://www.djangoproject.com/weblog/2023/jul/03/security-releases"},{"type":"WEB","url":"https://www.debian.org/security/2023/dsa-5465"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XG5DYKPNDCEHJQ3TKPJQO7QGSR4FAYMS"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NRDGTUN4LTI6HG4TWR3JYLSFVXPZT42A"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5DYKPNDCEHJQ3TKPJQO7QGSR4FAYMS"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NRDGTUN4LTI6HG4TWR3JYLSFVXPZT42A"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/07/msg00022.html"},{"type":"WEB","url":"https://groups.google.com/forum/#%21forum/django-announce"},{"type":"WEB","url":"https://groups.google.com/forum/#!forum/django-announce"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-100.yaml"},{"type":"PACKAGE","url":"https://github.com/django/django"},{"type":"WEB","url":"https://docs.djangoproject.com/en/4.2/releases/security"}],"database_specific":{"cwe_ids":["CWE-1333"],"github_reviewed":true,"github_reviewed_at":"2023-07-05T22:45:55Z","nvd_published_at":"2023-07-03T13:15:09Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}