GHSA-q238-5cxm-5c9h

Django GeoDjango vulnerable to denial of service through deeply nested geometry collections

At a glance

Published
Updated
CVE
CVE-2026-15830
Aliases
BIT-django-2026-15830, PYSEC-2026-3717
CVSS_V3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS_V4
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

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.

Affected packages

PackageVersions
PyPI · djangointroduced 0, fixed 5.2.17
PyPI · djangointroduced 6.0a1, fixed 6.0.8
PyPI · djangointroduced 6.1a1, fixed 6.1.1

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database