Django GeoDjango vulnerable to denial of service through deeply nested geometry collections
An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8.
GeoDjango's django.contrib.gis.geos.GEOSGeometry is subject to a potential denial-of-service when parsing deeply nested GEOMETRYCOLLECTION objects supplied as well-known text (WKT), well-known binary (WKB), or hex-encoded WKB, which triggers unbounded recursion and a segmentation fault in the underlying GEOS library. Spatial field lookups and the django.contrib.gis.forms.GeometryField form field are also affected.
Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.
Django would like to thank Andrew MacPherson and kimchunbok_ for reporting this issue.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | django | < 5.2.17, >= 6.0a1, < 6.0.8, >= 6.1a1, < 6.1.1 | 5.2.17, 6.0.8, 6.1.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-15830
- https://github.com/django/django/commit/6af5da31775417c610dbf9c3f1b5b8333d42daf6
- https://github.com/django/django/commit/9e4a3f186b6b07b483bfd9195ea06734663fcd06
- https://github.com/django/django/commit/ba80833fa656dd09660b97c4429331067db1b080
- https://github.com/django/django/commit/d2e59b77fe18de318a8272c2a7bbc798d84d1d0d
- https://docs.djangoproject.com/en/dev/releases/security
- https://github.com/django/django
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-3717.yaml
- https://groups.google.com/g/django-announce
- https://www.djangoproject.com/weblog/2026/aug/04/security-releases
- https://www.djangoproject.com/weblog/2026/aug/04/security-releases/
- https://docs.djangoproject.com/en/dev/releases/security/
- https://github.com/advisories/GHSA-q238-5cxm-5c9h
- https://github.com/django/django/commit/1eafa1a80f1363283f89208ba4499ed54e35f085
- https://github.com/django/django/commit/4353dfb56f8ba3a6fccc4bdd7f2ef2fbee3aa638
- https://github.com/django/django/commit/62ef9d40cf4ea75f16518436b44b8ab2515340df
- https://github.com/django/django/commit/75d401a1491e04a907ed745c128836d51c982c0f
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L- Weakness (CWE)
CWE-674- Platform
- Python (PyPI)
- Package
django- Disclosed
- 04.08.2026
- Updated
- 12.10.2026 17:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-3717 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-q238-5cxm-5c9h - CC BY 4.0
Vulnerability history: django
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 162
- First → latest
- 10.2007 08.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 16
- High 65
- Medium 63
- Low 18
Disclosures per year
- 2017: 3
- 2018: 5
- 2019: 11
- 2020: 6
- 2021: 8
- 2022: 14
- 2023: 7
- 2024: 14
- 2025: 12
- 2026: 26
earlier: 56
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Django GeoDjango vulnerable to denial of service through deeply nested geometry collections this entry
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