{"id":"CVE-2023-23969","details":"In Django 3.2 before 3.2.17, 4.0 before 4.0.9, and 4.1 before 4.1.6, the parsed values of Accept-Language headers are cached in order to avoid repetitive parsing. This leads to a potential denial-of-service vector via excessive memory usage if the raw value of Accept-Language headers is very large.","aliases":["BIT-django-2023-23969","GHSA-q2jf-h9jm-m7p4","PYSEC-2023-12"],"modified":"2026-04-02T08:49:21.891709Z","published":"2023-02-01T19:15:08.763Z","related":["MGASA-2023-0026","SUSE-SU-2024:2545-1","openSUSE-SU-2023:0057-1","openSUSE-SU-2023:0178-1","openSUSE-SU-2024:0251-1","openSUSE-SU-2024:12654-1","openSUSE-SU-2024:14208-1","openSUSE-SU-2025:14662-1","openSUSE-SU-2026:10005-1"],"references":[{"type":"WEB","url":"https://groups.google.com/forum/#%21forum/django-announce"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HWY6DQWRVBALV73BPUVBXC3QIYUM24IK/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTZVAKU5ALQWOKFTPISE257VCVIYGFQI/"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2023/02/msg00000.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20230302-0007/"},{"type":"ADVISORY","url":"https://www.djangoproject.com/weblog/2023/feb/01/security-releases/"},{"type":"FIX","url":"https://docs.djangoproject.com/en/4.1/releases/security/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/django/django","events":[{"introduced":"3591e1c1acbd7c13174275367c3fdf012cb0413b"},{"fixed":"aed1bb56d118937d5d6f3ec72f170779dd8c74cd"},{"introduced":"ef62a3a68c9d558486145a42c0d71ea9a76add9e"},{"fixed":"ca891ef44b27eb93890846615e0121037e6c8a35"},{"introduced":"9fee86e44dd83dc968ec443adcde191b3eba1286"},{"fixed":"f4909f7f7e5220e5a7eb9119beb959577263c63d"}],"database_specific":{"versions":[{"introduced":"3.2"},{"fixed":"3.2.17"},{"introduced":"4.0"},{"fixed":"4.0.9"},{"introduced":"4.1"},{"fixed":"4.1.6"}]}}],"versions":["stable/3.2.x","stable/4.0.x","stable/4.1.x"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-23969.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"10.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}