GHSA-crhf-3pfg-w68w
Django: GDALRaster may over-read heap memory when constructed from bytes
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16.
`django.contrib.gis.gdal.GDALRaster` over-reads its in-memory buffer when constructed from a bytes object, which can disclose adjacent memory or cause service degradation via a potential segmentation fault when the `vsi_buffer` property is accessed.
Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.
Django would like to thank Bence Nagy for reporting this issue.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2026-53877
- https://github.com/django/django/commit/38dfbd27d7d4f4e6eaa087d7a90f2613fbf55b3a
- https://github.com/django/django/commit/6c66eb8cec52b303af85c2c6e4dd00aa37654dbc
- https://github.com/django/django/commit/6ca2bbe2efce21010eff48f1f36a3f621d698ed8
- https://docs.djangoproject.com/en/dev/releases/security
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-2091.yaml
- https://groups.google.com/g/django-announce
- https://www.djangoproject.com/weblog/2026/jul/07/security-releases