---
id: CVE-2026-4277
title: "An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30.\nAdd permissions on inline model instances were not validated on submission of\r\nforged `POST` data in `GenericInlineModelAdmin`.\nEarlier, unsupported D…"
summary: "An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30.\nAdd permissions on inline model instances were not validated on submission of\r\nforged `POST` data in `GenericInlineModelAdmin`.\nEarlier, unsupported D…"
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-862
vendor: djangoproject
product: django
affected:
  - 'django >= 4.2, < 4.2.30'
  - 'django >= 5.2, < 5.2.13'
  - 'django >= 6.0, < 6.0.4'
patched:
  - django 6.0.4
published: '2026-04-07'
updated: '2026-06-17'
sourceUpdated: '2026-06-17T10:56:20.810'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-4277'
references:
  - url: 'https://docs.djangoproject.com/en/dev/releases/security/'
    label: 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
  - url: 'https://groups.google.com/g/django-announce'
    label: 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
  - url: 'https://www.djangoproject.com/weblog/2026/apr/07/security-releases/'
    label: 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-04-09T18:09:56.739026Z'
ingestedAt: '2026-09-13T06:03:15.368Z'
epss: 0.00458
epssPercentile: 0.38927
---

## Overview

An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30.
Add permissions on inline model instances were not validated on submission of
forged `POST` data in `GenericInlineModelAdmin`.
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 N05ec@LZU-DSLab for reporting this issue.

## Affected

- `django >= 4.2, < 4.2.30`
- `django >= 5.2, < 5.2.13`
- `django >= 6.0, < 6.0.4`

## Remediation

Upgrade past the affected range:

- `django 6.0.4`