Ubuntu 25.10 Django Critical Denial Of Service Issues USN-8154-1

Several security issues were fixed in Django.

Software Description:

- python-django: High-level Python web development framework

Details:

Seokchan Yoon discovered that Django incorrectly handled copying memory

when parsing multipart uploads with excessive whitespace. A remote attacker

could possibly use this issue to cause Django to use excessive resources,

leading to a denial of service. (CVE-2026-33033)

It was discovered that Django did not enforce an upload memory size limit

in the Content-Length header. A remote attacker could possibly use this

issue to cause Django to use excessive resources, leading to a denial of

service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10.

(CVE-2026-33034)

Tarek Nakkouch discovered that Django incorrectly handled underscores in

the ASGI headers. A remote attacker could possibly use this issue to spoof

HTTP headers. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS,

and Ubuntu 25.10. (CVE-2026-3902)

It was discovered t...