CVE-2026-25674: Django Django Has A Race Condition Vulnerability

LOW
Advisory Identifier: GHSA-mjgh-79qc-68w3
Share
CVSS 3.7
CWE-362
Published
Advisory Summary

CVE-2026-25674 is a LOW (CVSS 3.7) django has a race condition vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting Django libraries in the PyPI ecosystem. The issue involves django has a race condition vulnerability. Remediation is available by upgrading affected packages to version 6.0.3, 5.2.12, 4.2.29.

CVE-2026-25674 at a Glance

CVE Identifier CVE-2026-25674
GHSA Identifier GHSA-mjgh-79qc-68w3
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Product Django
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 3.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-25674

To remediate this vulnerability, upgrade all affected Django dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Django fixed: 6.0.3 
pip install Django>=6.0.3
Django fixed: 5.2.12 
pip install Django>=5.2.12
Django fixed: 4.2.29 
pip install Django>=4.2.29
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show Django

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-25674, inspect your installed packages using pip:

pip show Django

Analyze the terminal output to locate any version of Django in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.0.3), your application is affected.

Note: The pip show Django command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. In Django, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An issue was discovered in 6.0 before 6.0.3, 5.2 before 5.2.12, and 4.2 before 4.2.29. Race condition in file-system storage and file-based cache backends in Django allows an attacker to cause file system objects to be created with incorrect permissions via concurrent requests, where one thread's temporary `umask` change affects other threads in multi-threaded environments. 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 Tarek Nakkouch for reporting this issue.

CVE-2026-25674 Affected Django Versions

3 component(s)
Fixed Versions:
6.0.35.2.124.2.29
Product / Package Ecosystem Affected Versions Fixed Version
Django
pypi/Django
PyPI
≥ 6.0
< 6.0.3
6.0.3
Django
pypi/Django
PyPI
≥ 5.2
< 5.2.12
5.2.12
Django
pypi/Django
PyPI
≥ 4.2
< 4.2.29
4.2.29

References

NVD — CVE-2026-25674 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-25674
Django Release RELEASE
https://docs.djangoproject.com/en/dev/releases/security
Django Source Repository REPOSITORY
https://github.com/django/django
groups.google.com/g/django-announce WEB
https://groups.google.com/g/django-announce
Django Release RELEASE
https://www.djangoproject.com/weblog/2026/mar/03/security-releases

Frequently Asked Questions

What is CVE-2026-25674?
CVE-2026-25674 is a security vulnerability in Django involving Django has a Race Condition vulnerability under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Which Django versions are affected?
Affected versions include releases prior to 6.0.3, 5.2.12, 4.2.29 across affected packages: Django.
What version fixes CVE-2026-25674?
Upgrading to 6.0.3, 5.2.12, 4.2.29 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Django affected?
Yes, Django is affected in releases prior to 6.0.3, 5.2.12, 4.2.29. Upgrade your dependency to 6.0.3, 5.2.12, 4.2.29 or later.
What is the CVSS score of CVE-2026-25674?
CVE-2026-25674 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-25674?
CVE-2026-25674 is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.).
How can I check PyPI dependencies for CVE-2026-25674?
Run the dependency tree command: 'pip show Django'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
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  "schema_version" : "1.4.0",
  "id" : "GHSA-mjgh-79qc-68w3",
  "modified" : "2026-03-04T20:24:29Z",
  "published" : "2026-03-03T15:31:41Z",
  "aliases" : [ "CVE-2026-25674" ],
  "summary" : "Django has a Race Condition vulnerability",
  "details" : "An issue was discovered in 6.0 before 6.0.3, 5.2 before 5.2.12, and 4.2 before 4.2.29.\n\nRace condition in file-system storage and file-based cache backends in Django allows an attacker to cause file system objects to be created with incorrect permissions via concurrent requests, where one thread's temporary `umask` change affects other threads in multi-threaded environments.\n\nEarlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.\nDjango would like to thank Tarek Nakkouch for reporting this issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
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    "url" : "https://groups.google.com/g/django-announce"
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  "database_specific" : {
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    "severity" : "LOW",
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    "github_reviewed_at" : "2026-03-04T20:24:29Z",
    "nvd_published_at" : "2026-03-03T15:16:19Z"
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}