CVE-2026-5766

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Source
https://cve.org/CVERecord?id=CVE-2026-5766
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-5766.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-5766
Aliases
Downstream
Related
Published
2026-05-05T14:49:19.715Z
Modified
2026-05-18T06:00:18.907490900Z
Severity
  • 6.3 (Medium) CVSS_V4 - 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 CVSS Calculator
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. 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.

Database specific 
{
    "cwe_ids": [
        "CWE-130"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5766.json",
    "cna_assigner": "DSF"
}
References

Affected packages

Git / github.com/django/django

Affected ranges

Type
GIT
Repo
https://github.com/django/django
Events
Introduced
9e7cc2b628fe8fd3895986af9b7fc9525034c1b0
Fixed
024c26b1e77ea5b1b158265167ade47927a64c06

Affected versions

5.*
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

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-5766.json"