| Name | CVE-2025-64458 |
| Description | An issue was discovered in 5.1 before 5.1.14, 4.2 before 4.2.26, and 5.2 before 5.2.8. NFKC normalization in Python is slow on Windows. As a consequence, `django.http.HttpResponseRedirect`, `django.http.HttpResponsePermanentRedirect`, and the shortcut `django.shortcuts.redirect` were subject to a potential denial-of-service attack via certain inputs with a very large number of Unicode characters. 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 Seokchan Yoon for reporting this issue. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| python-django (PTS) | bullseye | 2:2.2.28-1~deb11u2 | fixed |
| bullseye (security) | 2:2.2.28-1~deb11u9 | fixed | |
| bookworm, bookworm (security) | 3:3.2.19-1+deb12u1 | fixed | |
| trixie | 3:4.2.23-1 | fixed | |
| forky | 3:4.2.26-1 | fixed | |
| sid | 3:4.2.27-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| python-django | source | (unstable) | (not affected) |
- python-django <not-affected> (Windows-specific)
https://www.djangoproject.com/weblog/2025/nov/05/security-releases/
https://github.com/django/django/commit/c880530ddd4fabd5939bab0e148bebe36699432a (main)
https://github.com/django/django/commit/770eea38d7a0e9ba9455140b5a9a9e33618226a7 (4.2.26)