CVE-2026-87975
MediumCVSS 4.3Summary
In Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18, the function django.forms.models.BaseModelFormSet.save_existing_objects() used the presence of a primary key on a submitted form's instance as evidence that the instance belonged to the formset's limiting queryset. An object outside that queryset can be deleted by an authenticated user without permission on the targeted object, via forged management-form data. Models using the default AutoField primary key are not affected.
Risk Assessment
An authenticated user may delete records outside the allowed scope, potentially leading to data integrity violations and unauthorized changes.
Recommendation
It is recommended to upgrade Django to versions 6.1.2, 6.0.9, or 5.2.18, which include the fix.
Other vulnerabilities in Django
See all- CVE-2026-87890Medium
In Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18, an incomplete fix for CVE-2026-15307 in Django spatial lookups allows an attacker who can supply bytes values to cause the Django process to make network requests via a crafted VRT document referencing an external raster source.
- CVE-2026-84429Medium
In Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18, the function django.utils.http.parse_header_parameters() is subject to a potential denial-of-service attack due to quadratic time complexity when parsing a value with many separators inside a quoted parameter. An unauthenticated request could reach this parsing through headers such as Accept or Content-Type.
- CVE-2026-77050Medium
In Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18, the function django.utils.translation.get_supported_language_variant() is subject to a potential denial-of-service attack when processing many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory.
- CVE-2016-9014High
Django versions before 1.8.16, 1.9.11, and 1.10.3, when DEBUG is enabled, allow remote attackers to conduct DNS rebinding attacks due to failure to validate the HTTP Host header against ALLOWED_HOSTS.
- CVE-2016-7401High
The cookie parsing code in Django before 1.8.15 and 1.9.x before 1.9.10, when used on a site with Google Analytics, allows remote attackers to bypass an intended CSRF protection mechanism by setting arbitrary cookies.
- CVE-2016-2512High
The utils.http.is_safe_url function in Django before 1.8.10 and 1.9.x before 1.9.3 allows remote attackers to redirect users to arbitrary web sites. This can lead to phishing attacks or potentially cross-site scripting (XSS) attacks via a URL containing basic authentication.
- CVE-2015-5143High
Django versions before 1.4.21, 1.5.x through 1.6.x, 1.7.x before 1.7.9, and 1.8.x before 1.8.3 are vulnerable to denial of service attacks. Attackers can exploit unique session keys to consume session store resources.
- CVE-2014-0474High
In Django versions before 1.4.11, 1.5.x before 1.5.6, 1.6.x before 1.6.3, and 1.7.x before 1.7 beta 2, the FilePathField, GenericIPAddressField, and IPAddressField model field classes do not properly perform type conversion. This may allow remote attackers to have unspecified impact related to 'MySQL typecasting.'
- CVE-2026-5766Medium
An issue was discovered in versions 6.0 before 6.0.5 and 5.2 before 5.2.14 related to ASGI requests that can bypass the `FILE_UPLOAD_MAX_MEMORY_SIZE` limit when the `Content-Length` header is missing or understated. This may lead to large files being loaded into memory, causing service degradation.
- CVE-2026-35192Low
An issue was discovered in versions 6.0 before 6.0.5 and 5.2 before 5.2.14 regarding response headers that do not vary on cookies if a session is not modified, while `SESSION_SAVE_EVERY_REQUEST` is set to `True`. A remote attacker can steal a user's session after that user visits a cached public page.
Original NVD description (English source)
An issue was discovered in Django 6.1 before 6.1.2, 6.0 before 6.0.9, and 5.2 before 5.2.18. `django.forms.models.BaseModelFormSet.save_existing_objects()` used the presence of a primary key on a submitted form's instance as evidence that the instance belonged to the formset's limiting queryset. An object outside that queryset is represented by a newly constructed instance whose primary key can still be populated from submitted data when the model's primary key is a field accepted by the form, such as a `OneToOneField` or parent link used as the primary key of an inline formset's model, or a natural or UUID primary key included in the form's fields. This allows an authenticated user permitted to submit such a formset to delete rows outside the limiting queryset, without any permission on the targeted object, via forged management-form data marking an out-of-queryset object for deletion. Models using the default AutoField primary key are not affected. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Seonggwon Yoon for reporting this issue.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS