CVE-2025-64458

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

05/11/2025

Last modified:

10/11/2025

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.<br /> 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.<br /> Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.<br /> Django would like to thank Seokchan Yoon for reporting this issue.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:djangoproject:django::::::::	4.2 (including)	4.2.26 (excluding)
cpe:2.3:a:djangoproject:django::::::::	5.1 (including)	5.1.14 (excluding)
cpe:2.3:a:djangoproject:django::::::::	5.2 (including)	5.2.8 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2025-64458

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools