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CVE-2026-4277 — Vulnerability in django — CVE Details

CRITICAL

Published April 7, 2026Updated June 10, 2026Source: osv

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. 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.

Advisory Timeline

  • First published April 7, 2026 (188 days ago).
  • Last revised June 10, 2026 — 64 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update django to 4.2.30 or later
pip install "django>=4.2.30"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
django
pypi
4.2, 4.2.1, 4.2.10, 4.2.11 (+43 more)4.2.30, 5.2.13, 6.0.4

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2026-4277?
This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2026-4277?
CVE-2026-4277 affects django. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-4277 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

PYSEC-2026-52
BIT-django-2026-4277
GHSA-pwjp-ccjc-ghwg

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