Vulnerability in Djangoproject Django

CVE-2026-15830

An issue was discovered in Django 6.0 before 6.0.9 and 5.2 before 5.2.18. 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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.011 (66.0th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-15830: held from 0.008 to 0.011.

EPSS over last 30 days · oldest: 0.008 · newest: 0.011 · change: +0.003

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-15830?
CVE-2026-15830 is a medium-severity vulnerability in Djangoproject Django, classified under Uncontrolled Recursion. CVSS score: 5.3/10. Published 2026-08-04.
How severe is CVE-2026-15830?
Medium severity. CVSS v3 base score is 5.3 out of 10.