Disclosure summary
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.
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
GitHub Reviewed Security Advisories · GHSA-q238-5cxm-5c9h
Open original source · Updated Sep 30, 2026
Django GeoDjango vulnerable to denial of service through deeply nested geometry collections
Source severity: MEDIUM / 6.9
| Ecosystem | Package | Affected range | First patched |
|---|---|---|---|
| pip | django | < 5.2.17 | 5.2.17 |
| pip | django | >= 6.0a1, < 6.0.8 | 6.0.8 |
| pip | django | >= 6.1a1, < 6.1.1 | 6.1.1 |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Reviewed advisory
PUBLISHED 2026-08-04T14:31:27-04:00
MODIFIED 2026-09-30T16:19:01-04:00
INGESTED 2026-10-06T11:43:09-04:00