CVE-2026-25674 Potential incorrect permissions on newly created file system objects

Low 3.7 Published Updated

A race condition in Django's file storage allows attackers to create files with incorrect permissions, potentially leading to privilege escalation or data exposure.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-25674?

CVE-2026-25674 is a low-severity vulnerability in Djangoproject Django, published on 3 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-362

Which versions are affected by CVE-2026-25674?

8 open source packages ship an affected version, including django and Django. It affects 1 product.

PackageAffectedFixed in
django BitnamiFrom 4.2.04.2.29, 5.2.12, 6.0.3
django PyPIFrom 4.24.2.29, 5.2.12, 6.0.3
django PyPIFrom 4.24.2.29
django PyPIFrom 5.25.2.12
django PyPIFrom 6.06.0.3
Django PyPIFrom 4.24.2.29
2 more packages
Django PyPIFrom 5.25.2.12
Django PyPIFrom 6.06.0.3
Linux distribution packages (6)
python-Django SUSE:Linux Enterprise Module for Package Hub 15 SP7All versions4.2.11-150600.3.50.1
python-Django openSUSE:Leap 15.6All versions4.2.11-150600.3.50.1
python-Django openSUSE:Leap 16.0All versions5.2.4-bp160.6.1
python-Django openSUSE:TumbleweedAll versions5.2.12-1.1
python-Django4 openSUSE:TumbleweedAll versions4.2.29-1.1
python-Django6 openSUSE:TumbleweedAll versions6.0.3-1.1

Products include Djangoproject Django.

How do I fix CVE-2026-25674?

Upgrade django to a fixed version for your release line: 4.2.29, 5.2.12 or 6.0.3.

Is CVE-2026-25674 being exploited?

There is no known exploitation of CVE-2026-25674 in the wild and no public exploit code.

All Djangoproject Django vulnerabilities

Sources

Also known as BIT-django-2026-25674, DEBIAN-CVE-2026-25674, ECHO-f85d-c4a6-6f1f, GHSA-mjgh-79qc-68w3, MGASA-2026-0050, MINI-c95x-c5hr-25p9 and 12 more.

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