{"id":"BIT-django-2026-15830","summary":"Potential denial-of-service vulnerability via nested geometry collections","details":"An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8.\nGeoDjango'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.\nEarlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected.\nDjango would like to thank Andrew MacPherson and kimchunbok_ for reporting this issue.","aliases":["CVE-2026-15830","PYSEC-2026-3717"],"modified":"2026-09-08T08:46:37.242093536Z","published":"2026-08-19T08:39:53.489Z","database_specific":{"cpes":["cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://docs.djangoproject.com/en/dev/releases/security/"},{"type":"FIX","url":"https://github.com/django/django/commit/6af5da31775417c610dbf9c3f1b5b8333d42daf6"},{"type":"FIX","url":"https://github.com/django/django/commit/9e4a3f186b6b07b483bfd9195ea06734663fcd06"},{"type":"FIX","url":"https://github.com/django/django/commit/ba80833fa656dd09660b97c4429331067db1b080"},{"type":"FIX","url":"https://github.com/django/django/commit/d2e59b77fe18de318a8272c2a7bbc798d84d1d0d"},{"type":"DISCUSSION","url":"https://groups.google.com/g/django-announce"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15830"},{"type":"ADVISORY","url":"https://www.djangoproject.com/weblog/2026/aug/04/security-releases/"}],"affected":[{"package":{"name":"django","ecosystem":"Bitnami","purl":"pkg:bitnami/django"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.2.17"},{"introduced":"6.0.0"},{"fixed":"6.0.8"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/django/BIT-django-2026-15830.json"},"severity":[{"type":"CVSS_V4","score":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}