{"id":"CVE-2023-46695","details":"An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.","aliases":["BIT-django-2023-46695","GHSA-qmf9-6jqf-j8fq","PYSEC-2023-222"],"modified":"2026-08-12T03:30:20.174698637Z","published":"2023-11-02T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46695.json","unresolved_ranges":[{"source":"DESCRIPTION","extracted_events":[{"introduced":"3.2"},{"fixed":"3.2.23"},{"introduced":"4.1"},{"fixed":"4.1.13"},{"introduced":"4.2"},{"fixed":"4.2.7"}]}]},"references":[{"type":"WEB","url":"https://docs.djangoproject.com/en/4.2/releases/security/"},{"type":"WEB","url":"https://groups.google.com/forum/#%21forum/django-announce"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46695.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-46695"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20231214-0001/"},{"type":"ARTICLE","url":"https://www.djangoproject.com/weblog/2023/nov/01/security-releases/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/django/django","events":[{"introduced":"3591e1c1acbd7c13174275367c3fdf012cb0413b"},{"fixed":"60e648a7ae033a9c2d1ab23a58402f57a1754df1"},{"introduced":"9fee86e44dd83dc968ec443adcde191b3eba1286"},{"fixed":"42591a8aeb48f3cdf7da9fd0631017dd5410525a"},{"introduced":"97aa3b7f08f51669e118f3af5ca91026e39664c3"},{"fixed":"d254a54e7f65e83d8971bd817031bc6af32a7a46"}],"database_specific":{"extracted_events":[{"introduced":"3.2"},{"fixed":"3.2.23"},{"introduced":"4.1"},{"fixed":"4.1.13"},{"introduced":"4.2."},{"fixed":"4.2.7"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-46695.json"}}],"schema_version":"1.9.0"}