What is the CVSS score of CVE-2026-4277?

CVE-2026-4277 has a contested CVSS base score of 9.8 from a third party (e.g. CISA-ADP), while the vendor rates it Critical. vuln.today uses the vendor rating as authoritative.

Which versions of Python are affected by CVE-2026-4277?

Django GenericInlineModelAdmin in versions 6.0, 5.2, and 4.2 contains a critical permission bypass vulnerability that allows unauthenticated attackers to create unauthorized database records by…. A patch is available.

How to fix or mitigate CVE-2026-4277?

Within 24 hours: inventory all Django deployments and identify which versions (6.0.x, 5.2.x, 4.2.x) are in use with GenericInlineModelAdmin. Within 7 days: apply vendor patches immediately-upgrade to Django 6.0.4 or later, 5.2.13 or later, or 4.2.30 or later depending on your version line. Within 30 days: conduct application-level audit to detect any unauthorized records created post-discovery and verify permission controls on all inline model forms.

Python CVE-2026-4277

EUVD-2026-19687 CRITICAL

Missing Authorization (CWE-862)

2026-04-07 DSF

GHSA-pwjp-ccjc-ghwg

Authentication Bypass Python Red Hat Suse

Critical

Disputed · 9.8 NVD

Severity by source

Sources disagree (Medium–Critical)

NVD PRIMARY

9.8 CRITICAL

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

SUSE

CRITICAL

qualitative

Red Hat

5.4 MEDIUM

qualitative

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Apr 07, 2026 - 21:31 nvd

Patch available

EUVD ID Assigned

Apr 07, 2026 - 15:00 euvd

EUVD-2026-19687

Analysis Generated

Apr 07, 2026 - 15:00 vuln.today

CVE Published

Apr 07, 2026 - 14:22 nvd

CRITICAL 9.8

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

16 pypi packages depend on django (16 direct, 0 indirect)

Ecosystem-wide dependent count for version 6.0.

DescriptionCVE.org

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.

AnalysisAI

Unauthenticated attackers can bypass add permissions in Django GenericInlineModelAdmin (versions 6.0 <6.0.4, 5.2 <5.2.13, 4.2 <4.2.30) by submitting forged POST data to inline model forms. Permission checks fail to validate creation rights on inline model instances, enabling unauthorized database record insertion with network access alone. CVSS 9.8 critical severity reflects complete confidentiality, integrity, and availability impact. No public exploit identified at time of analysis. Low observed exploitation activity (EPSS 0.01%).

Technical ContextAI

CWE-862 missing authorization flaw in GenericInlineModelAdmin form processing. Django's inline model admin fails to enforce add permissions during POST submission validation, allowing permission boundary bypass through direct form manipulation. Affects Python-based Django applications using generic inline admin classes.

RemediationAI

Vendor-released patches: upgrade to Django 6.0.4, 5.2.13, or 4.2.30 immediately. Organizations maintaining unsupported Django versions should prioritize migration to supported releases or backport permission validation logic from patches. If immediate upgrade is infeasible, disable or remove GenericInlineModelAdmin usage until patching completes, and audit recent inline model submissions for unauthorized records. Official security advisory: https://www.djangoproject.com/weblog/2026/apr/07/security-releases/ and detailed release notes: https://docs.djangoproject.com/en/dev/releases/security/. Ubuntu users reference USN-8154-1: https://ubuntu.com/security/notices/USN-8154-1.

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Vendor StatusVendor

SUSE

Severity: Critical

Product	Status
openSUSE Tumbleweed	Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP7	Fixed
openSUSE Leap 15.6	Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP6	Fixed

CVE-2026-4277 vulnerability details – vuln.today

Back

Python CVE-2026-4277

Severity by source

CVSS VectorNVD

Lifecycle Timeline

Blast Radius

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

More in Python

Same weakness CWE-862 – Missing Authorization

Same technique Authentication Bypass

Vendor StatusVendor

SUSE

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External POC / Exploit Code