Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://docs.djangoproject.com/en/dev/releases/security/
- 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://groups.google.com/g/django-announce
- https://www.djangoproject.com/weblog/2026/aug/04/security-releases/
FAQ
What is CVE-2026-15830?
CVE-2026-15830 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 `GEO...
How severe is CVE-2026-15830?
CVE-2026-15830 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-15830?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.