affected:
- package:
    ecosystem: PyPI
    name: django
    purl: pkg:pypi/django
  ranges:
  - events:
    - introduced: '5.2'
    - fixed: 5.2.14
    - introduced: '6.0'
    - fixed: 6.0.5
    type: ECOSYSTEM
  versions:
  - '5.2'
  - 5.2.1
  - 5.2.10
  - 5.2.11
  - 5.2.12
  - 5.2.13
  - 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
  - 6.0.4
aliases:
- CVE-2026-5766
- GHSA-w26r-rmm8-9c29
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.\n
  \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."
id: PYSEC-2026-54
modified: '2026-05-20T09:18:59.272788Z'
published: '2026-05-05T16:16:17.740Z'
references:
- type: ADVISORY
  url: https://docs.djangoproject.com/en/dev/releases/security/
- type: ADVISORY
  url: https://groups.google.com/g/django-announce
- type: ADVISORY
  url: https://www.djangoproject.com/weblog/2026/may/05/security-releases/
- type: ADVISORY
  url: https://github.com/advisories/GHSA-w26r-rmm8-9c29
severity:
- score: 
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  type: CVSS_V4