{"id":"BIT-django-2026-33033","summary":"Potential denial-of-service vulnerability in MultiPartParser via base64-encoded file upload","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":["CVE-2026-33033","GHSA-5mf9-h53q-7mhq","PYSEC-2026-48"],"modified":"2026-05-20T08:11:33.715497064Z","published":"2026-04-16T23:38:44.975Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*"]},"references":[{"type":"WEB","url":"https://docs.djangoproject.com/en/dev/releases/security/"},{"type":"WEB","url":"https://groups.google.com/g/django-announce"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33033"},{"type":"WEB","url":"https://www.djangoproject.com/weblog/2026/apr/07/security-releases/"}],"affected":[{"package":{"name":"django","ecosystem":"Bitnami","purl":"pkg:bitnami/django"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.2.0"},{"fixed":"4.2.30"},{"introduced":"5.2.0"},{"fixed":"5.2.13"},{"introduced":"6.0.0"},{"fixed":"6.0.4"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/django/BIT-django-2026-33033.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.7.5"}