CVE-2026-87975

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Source

https://cve.org/CVERecord?id=CVE-2026-87975

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-87975.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-87975

Downstream

Published

2026-10-06T13:35:59Z

Modified

2026-10-08T02:48:34Z

Severity

5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Privilege abuse in model formsets with editable primary keys

Details

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.

Database specific

{
    "cna_assigner": "DSF",
    "cwe_ids": [
        "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87975.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "6.1"
                },
                {
                    "fixed": "6.1.2"
                },
                {
                    "introduced": "6.0"
                },
                {
                    "fixed": "6.0.9"
                },
                {
                    "introduced": "5.2"
                },
                {
                    "fixed": "5.2.18"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "introduced": "6.1"
                },
                {
                    "fixed": "6.1.2"
                },
                {
                    "introduced": "6.0"
                },
                {
                    "fixed": "6.0.9"
                },
                {
                    "introduced": "5.2"
                },
                {
                    "fixed": "5.2.18"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

References

Affected packages

Git / github.com/django/django

Affected ranges

Type

GIT

Repo

https://github.com/django/django

Events

Introduced

Fixed

83cbd21be57483e6b3eb6e4688a561c841aff75e

Fixed

b83ab92bc5474558b083a840ea4628b3261b2cfe

Fixed

cce6c57ed30ea83725f9d6abb2fe5ee932bab107

Fixed

ff27883ca055aa9ab23015b50674a5b10dfe5a41

Database specific

Show details

{
    "source": "REFERENCES"
}

Affected versions

1.*

1.0

1.1

1.2

1.2.1

1.3

1.4

1.7a2

5.*

5.2

5.2.1

5.2.10

5.2.11

5.2.12

5.2.13

5.2.14

5.2.15

5.2.16

5.2.17

5.2.2

5.2.3

5.2.4

5.2.5

5.2.6

5.2.7

5.2.8

5.2.9

5.2a1

5.2b1

5.2rc1

6.*

6.0

6.0.1

6.0.2

6.0.3

6.0.4

6.0.5

6.0.6

6.0.7

6.0.8

6.0a1

6.0b1

6.0rc1

6.1

6.1.1

6.1a1

6.1b1

6.1rc1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-87975.json"