Potential denial-of-service vulnerability via nested geometry collections

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-15830
StatePUBLISHED
AssignerDSF
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-04 17:16:46 UTC
Updated2026-08-04 18:16:44 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v4.0 6.9 MEDIUM from 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92

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

Problem Types: CWE-674 | CWE-674 CWE-674: Uncontrolled Recursion

VersionSourceTypeScoreSeverityVector
4.06a34fbeb-21d4-45e7-8e0a-62b95bc12c92Secondary6.9MEDIUMCVSS: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/C...
4.0CNADECLARED6.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
3.16a34fbeb-21d4-45e7-8e0a-62b95bc12c92Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Djangoproject Django affected 6.0 6.0.8 python Not specified
CNA Djangoproject Django unaffected 6.0.8 python Not specified
CNA Djangoproject Django affected 5.2 5.2.17 python Not specified
CNA Djangoproject Django unaffected 5.2.17 python Not specified

References

ReferenceSourceLinkTags
www.djangoproject.com/weblog/2026/aug/04/security-releases 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 www.djangoproject.com
github.com/django/django/commit/6af5da31775417c610dbf9c3f1b5b8333d42daf6 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 github.com
groups.google.com/g/django-announce 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 groups.google.com
docs.djangoproject.com/en/dev/releases/security 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 docs.djangoproject.com
github.com/django/django/commit/ba80833fa656dd09660b97c4429331067db1b080 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 github.com
github.com/django/django/commit/d2e59b77fe18de318a8272c2a7bbc798d84d1d0d 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 github.com
github.com/django/django/commit/9e4a3f186b6b07b483bfd9195ea06734663fcd06 6a34fbeb-21d4-45e7-8e0a-62b95bc12c92 github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Andrew MacPherson and kimchunbok_ (en)

CNA: Jacob Walls (en)

CNA: Natalia Bidart (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-07-08T00:00:00.000ZInitial report received.
CNA2026-07-23T00:00:00.000ZVulnerability confirmed.
CNA2026-08-04T10:00:00.000ZSecurity release issued.

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