Input validation error in Django - CVE-2026-5766
Published: May 5, 2026
Vulnerability identifier: #VU130190
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-5766
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Django
Django
Software vendor:
Django Software Foundation
Django Software Foundation
Description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in ASGI request handling when processing file uploads with a missing or understated Content-Length header. A remote attacker can send a specially crafted request to cause a denial of service.
Large uploaded files may be loaded into memory, causing service degradation.
Remediation
Install security update from vendor's website.