Vulnerability in Djangoproject Django
CVE-2026-25674
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.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (23.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
Affected products
- Djangoproject Django — versions 6.0, 6.0.3, 5.2
Weakness classification (CWE)
References
- 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 (vendor-advisory, Patch, Vendor Advisory)
- 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 (mailing-list, Release Notes)
- 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 (vendor-advisory, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-25674?
- CVE-2026-25674 is a low-severity vulnerability in Djangoproject Django, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 3.7/10. Published 2026-03-03.
- How severe is CVE-2026-25674?
- Low severity. CVSS v3 base score is 3.7 out of 10.