{"id":"PYSEC-2026-48","details":"An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30.\n`MultiPartParser` allows remote attackers to degrade performance by submitting multipart uploads with `Content-Transfer-Encoding: base64` including excessive whitespace.\nEarlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.\nDjango would like to thank Seokchan Yoon for reporting this issue.","aliases":["BIT-django-2026-33033","CVE-2026-33033","GHSA-5mf9-h53q-7mhq"],"modified":"2026-06-10T17:01:10.011691805Z","published":"2026-04-07T15:17:39.220Z","references":[{"type":"ADVISORY","url":"https://groups.google.com/g/django-announce"},{"type":"FIX","url":"https://docs.djangoproject.com/en/dev/releases/security/"},{"type":"FIX","url":"https://www.djangoproject.com/weblog/2026/apr/07/security-releases/"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-5mf9-h53q-7mhq"}],"affected":[{"package":{"name":"django","ecosystem":"PyPI","purl":"pkg:pypi/django"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2"},{"fixed":"4.2.30"},{"introduced":"5.2"},{"fixed":"5.2.13"},{"introduced":"6.0"},{"fixed":"6.0.4"}]}],"versions":["4.2","4.2.1","4.2.10","4.2.11","4.2.12","4.2.13","4.2.14","4.2.15","4.2.16","4.2.17","4.2.18","4.2.19","4.2.2","4.2.20","4.2.21","4.2.22","4.2.23","4.2.24","4.2.25","4.2.26","4.2.27","4.2.28","4.2.29","4.2.3","4.2.4","4.2.5","4.2.6","4.2.7","4.2.8","4.2.9","5.2","5.2.1","5.2.10","5.2.11","5.2.12","5.2.2","5.2.3","5.2.4","5.2.5","5.2.6","5.2.7","5.2.8","5.2.9","6.0","6.0.1","6.0.2","6.0.3"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/django/PYSEC-2026-48.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}