{"id":"CVE-2026-5766","aliases":["BIT-django-2026-5766","GHSA-w26r-rmm8-9c29","PYSEC-2026-54"],"url":"https://o3.security/vulnerability/CVE-2026-5766","summary":"Potential denial-of-service vulnerability in ASGI requests via file upload limit bypass","details":"An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14.\nASGI requests with a missing or understated `Content-Length` header can bypass the `FILE_UPLOAD_MAX_MEMORY_SIZE` limit, potentially loading large files into memory and causing service degradation.\r\n \r\nAs a reminder, Django expects a limit to be configured at the web server level rather than solely relying on `FILE_UPLOAD_MAX_MEMORY_SIZE`.\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 Kyle Agronick for reporting this issue.","published":"2026-05-05T14:49:19.715Z","modified":"2026-07-15T10:14:45.877448467Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"django","fixedVersion":"6.0.5"},{"ecosystem":"PyPI","name":"django","fixedVersion":"5.2.14"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/django/django/"},{"type":"ADVISORY","url":"https://docs.djangoproject.com/en/dev/releases/security/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5766.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5766"},{"type":"ADVISORY","url":"https://www.djangoproject.com/weblog/2026/may/05/security-releases/"},{"type":"PACKAGE","url":"https://pypi.org/project/Django/"},{"type":"ARTICLE","url":"https://groups.google.com/g/django-announce"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T10:14:45.877448467Z"}}