python3-django: An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14
CVE-2026-5766 is fixed in 2 products on 1 platform, first by python3-django 3:5.2.9-0ubuntu4.1, released May 5, 2026. It is not reported as exploited. Patch Radar priority: Routine.
An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14. ASGI 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. As a reminder, Django expects a limit to be configured at the web server level rather than solely relying on `FILE_UPLOAD_MAX_MEMORY_SIZE`. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Kyle Agronick for reporting this issue.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-django · Debian 14 | 3:5.2.14-1 | DEBIAN-CVE-2026-5766 | May 5, 2026 |
| python3-django · Ubuntu 22.04.1 LTS (jammy) | 2:3.2.12-2ubuntu1.27 | python3-django 2:3.2.12-2ubuntu1.27 | May 15, 2026 |
| python3-django · Ubuntu 24.04.5 LTS (noble) | 3:4.2.11-1ubuntu1.16 | python3-django 3:4.2.11-1ubuntu1.16 | May 15, 2026 |
| python3-django · Ubuntu 25.10 (questing) | 3:5.2.4-1ubuntu2.5 | python3-django 3:5.2.4-1ubuntu2.5 | May 15, 2026 |
| python3-django · Ubuntu 26.04.1 LTS (resolute) | 3:5.2.9-0ubuntu4.1 | python3-django 3:5.2.9-0ubuntu4.1 | May 5, 2026 |
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