Vulnerability advisory

CVE-2026-53877

Heap buffer over-read in GDALRaster

Published Jul 7, 2026Updated Oct 28, 2026OSV record ↗

Also known as BIT-django-2026-53877GHSA-crhf-3pfg-w68wPYSEC-2026-2091

Severity

CVSS 4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

Affected versions

Repository

Affected commits	Fixed by commit
GIT github.com/django/django ↗
9e7cc2b628fe8fd3895986af9b7fc9525034c1b0 to before 6c8eee41f778da87bdd17e27381d3705ed2d068b	`6c8eee41f778da87bdd17e27381d3705ed2d068b`
36b5f39d9372147f0e758f590e35ee2b2bc317dd to before e2a424605ac2e7e6e799496542fb2997207e2f23	`e2a424605ac2e7e6e799496542fb2997207e2f23`
Also listed as affected (23) `5.2.15` `6.0.6` `5.2.14` `6.0.5` `5.2.13` `6.0.4` `5.2.12` `6.0.3` `5.2.11` `6.0.2` `6.0.1` `5.2.10` `6.0` `5.2.9` `5.2.8` `5.2.7` `5.2.6` `5.2.5` `5.2.4` `5.2.3` `5.2.2` `5.2.1` `5.2`

Description

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.

CVE-2026-53877

Affected versions

Repository

Description

References