Vulnerability · Published Mar 3, 2026 · Assigned by DSF
CVE-2026-25674Potential incorrect permissions on newly created file system objects
Low 3.7
In plain English
A low-severity race condition in Django from djangoproject. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | py3-django | 4.2.29-r0 | ALPINE-CVE-2026-25674 |
| Debian:12 | python-django | no fix listed | DEBIAN-CVE-2026-25674 |
| Debian:13 | python-django | no fix listed | DEBIAN-CVE-2026-25674 |
| Debian:14 | python-django | 3:4.2.29-1 | DEBIAN-CVE-2026-25674 |
| PyPI | django | 4.2.29 | GHSA-mjgh-79qc-68w3 |
| PyPI | django | 4.2.29, 5.2.12, 6.0.3 | PYSEC-2026-2449 |
| PyPI | django | 5.2.12 | GHSA-mjgh-79qc-68w3 |
| PyPI | django | 6.0.3 | GHSA-mjgh-79qc-68w3 |
| Ubuntu:22.04:LTS | python-django | no fix listed | UBUNTU-CVE-2026-25674 |
| Ubuntu:24.04:LTS | python-django | no fix listed | UBUNTU-CVE-2026-25674 |
| Ubuntu:25.10 | python-django | no fix listed | UBUNTU-CVE-2026-25674 |
| Ubuntu:26.04:LTS | python-django | no fix listed | UBUNTU-CVE-2026-25674 |
| Ubuntu:26.10 | python-django | no fix listed | UBUNTU-CVE-2026-25674 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| djangoproject | Django | 6.0 – before 6.0.35.2 – before 5.2.124.2 – before 4.2.29 |
Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- Django security archive vendor-advisory
- Django releases announcements mailing-list
- Django security releases issued: 6.0.3, 5.2.12, and 4.2.29 vendor-advisory