CVE-2026-6873

An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. `django.http.HttpRequest.get_signed_cookie` in Django uses a non-injective salt derivation (concatenating the cookie name and salt argument), which allows a remote attacker to use a cookie in a context different from the one where it was signed, via distinct `(name, salt)` pairs that produce the same concatenation. 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 Peng Zhou for reporting this issue.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*

History

21 Jul 2026, 19:10

Type Values Removed Values Added
Summary
  • (es) Se descubrió un problema en Django 6.0 anterior a 6.0.6 y 5.2 anterior a 5.2.15. 'django.http.HttpRequest.get_signed_cookie' en Django utiliza una derivación de sal no inyectiva (concatenando el nombre de la cookie y el argumento de sal), lo que permite a un atacante remoto usar una cookie en un contexto diferente de aquel donde fue firmada, a través de pares '(name, salt)' distintos que producen la misma concatenación. Series de Django anteriores y no compatibles (como 5.0.x, 4.1.x y 3.2.x) no fueron evaluadas y también podrían estar afectadas. Django desea agradecer a Peng Zhou por informar sobre este problema.

05 Jun 2026, 12:58

Type Values Removed Values Added
References () https://docs.djangoproject.com/en/dev/releases/security/ - () https://docs.djangoproject.com/en/dev/releases/security/ - Patch, Vendor Advisory
References () https://groups.google.com/g/django-announce - () https://groups.google.com/g/django-announce - Release Notes
References () https://www.djangoproject.com/weblog/2026/jun/03/security-releases/ - () https://www.djangoproject.com/weblog/2026/jun/03/security-releases/ - Patch, Vendor Advisory
First Time Djangoproject
Djangoproject django
CPE cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*

03 Jun 2026, 14:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-06-03 14:16

Updated : 2026-07-21 19:10


NVD link : CVE-2026-6873

Mitre link : CVE-2026-6873

CVE.ORG link : CVE-2026-6873


JSON object : View

Products Affected

djangoproject

  • django
CWE
CWE-347

Improper Verification of Cryptographic Signature