Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| djangoproject | Django | 6.0 – < 6.0.5, 5.2 – < 5.2.14 | 6.0.5 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | python-django | 3:5.2.14-1 | — |
| Debian 13 | python-django | No fix yet | — |
| Debian 12 | python-django | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | python-django | 3:5.2.9-0ubuntu4.1 | — |
| Ubuntu 25.10 | python-django | 3:5.2.4-1ubuntu2.5 | — |
| Ubuntu 24.04 LTS | python-django | 3:4.2.11-1ubuntu1.16 | — |
| Ubuntu 22.04 LTS | python-django | 2:3.2.12-2ubuntu1.27 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | python-django | No fix yet | — |
| Ubuntu Pro 18.04 LTS | python-django | No fix yet | — |
| Ubuntu Pro 16.04 LTS | python-django | No fix yet | — |
| Ubuntu Pro 14.04 LTS | python-django | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-Django | 5.2.14-1.1 | openSUSE-SU-2026:10718-1 |
| openSUSE Tumbleweed | python-Django4 | 4.2.30-2.1 | openSUSE-SU-2026:10708-1 |
| openSUSE Tumbleweed | python-Django5 | 5.2.16-1.1 | openSUSE-SU-2026:11270-1 |
| openSUSE Tumbleweed | python-Django6 | 6.0.5-1.1 | openSUSE-SU-2026:10709-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | py3-django | 5.2.14-r0 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | py3-django +2 | 6.0.5-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | django | >= 6.0, < 6.0.5 | 6.0.5 | GHSA-w26r-rmm8-9c29 |
| PyPI | django | >= 5.2, < 5.2.14 | 5.2.14 | GHSA-w26r-rmm8-9c29 |
| PyPI | django | >= 5.2, < 5.2.14 · >= 6.0, < 6.0.5 | 5.2.14, 6.0.5 | PYSEC-2026-54 |
Advisories 5
- WID-SEC-2026-1373 Django: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 30, 2026
- openSUSE-SU-2026:11270-1 python313-Django5-5.2.16-1.1 on GA media SUSE / openSUSE Security Updates · Jul 15, 2026
- openSUSE-SU-2026:10718-1 python311-Django-5.2.14-1.1 on GA media SUSE / openSUSE Security Updates · May 8, 2026
- openSUSE-SU-2026:10709-1 python313-Django6-6.0.5-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2026
- openSUSE-SU-2026:10708-1 python311-Django4-4.2.30-2.1 on GA media SUSE / openSUSE Security Updates · May 7, 2026
References
- Django security archive vendor-advisory
- Django releases announcements mailing-list
- Django security releases issued: 6.0.5 and 5.2.14 vendor-advisory