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.
Metrics
Affected Vendors & Products
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-w26r-rmm8-9c29 | Django has an Improper Handling of Length Parameter Inconsistency |
Ubuntu USN |
USN-8232-1 | Django vulnerabilities |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Thu, 07 May 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* |
Wed, 06 May 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 05 May 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Djangoproject
Djangoproject django |
|
| Vendors & Products |
Djangoproject
Djangoproject django |
Tue, 05 May 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Potential denial-of-service vulnerability in ASGI requests via file upload limit bypass | |
| Weaknesses | CWE-130 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: DSF
Published:
Updated: 2026-05-06T15:25:38.926Z
Reserved: 2026-04-07T19:29:07.042Z
Link: CVE-2026-5766
Updated: 2026-05-05T17:03:24.651Z
Status : Analyzed
Published: 2026-05-05T16:16:17.740
Modified: 2026-05-07T14:16:39.443
Link: CVE-2026-5766
No data.
OpenCVE Enrichment
Updated: 2026-05-05T18:15:29Z
Github GHSA
Ubuntu USN