CVE-2026-15830
Potential denial-of-service vulnerability via nested geometry collections
- Published
- Updated
- Reserved
- Assigned by
- DSF
Description
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.
Timeline
ID reserved
By DSF
- 20 days later
· 20 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| DSFCNA (assigner) | 4.0 | Medium6.9 | 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 |
| DSFCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVDNVD · Modified | 4.0 | Medium6.9 | 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 |
- EPSS (exploitation in 30 days)
- 1.1% · top 34% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.9.
Weakness
Affected products
- affected 6.0 – < 6.0.9
- unaffected 6.0.9
- affected 5.2 – < 5.2.18
- unaffected 5.2.18
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIdjangoGHSA-q238-5cxm-5c9h (opens in a new tab)
References (11)
- Django security archive (opens in a new tab)vendor-advisory
- Django releases announcements (opens in a new tab)mailing-list
- https://github.com/django/django/commit/d2e59b77fe18de318a8272c2a7bbc798d84d1d0d (opens in a new tab)patch
- https://github.com/django/django/commit/9e4a3f186b6b07b483bfd9195ea06734663fcd06 (opens in a new tab)patch
- https://github.com/django/django/commit/6af5da31775417c610dbf9c3f1b5b8333d42daf6 (opens in a new tab)patch
- https://github.com/django/django/commit/ba80833fa656dd09660b97c4429331067db1b080 (opens in a new tab)patch
- Django security releases issued: 6.0.8 and 5.2.17 (opens in a new tab)vendor-advisory
- https://github.com/django/django/commit/62ef9d40cf4ea75f16518436b44b8ab2515340df (opens in a new tab)patch
- https://github.com/django/django/commit/75d401a1491e04a907ed745c128836d51c982c0f (opens in a new tab)patch
- https://github.com/django/django/commit/4353dfb56f8ba3a6fccc4bdd7f2ef2fbee3aa638 (opens in a new tab)patch
- https://github.com/django/django/commit/1eafa1a80f1363283f89208ba4499ed54e35f085 (opens in a new tab)patch
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-q238-5cxm-5c9h (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-15830)Record last updated .