CVE-2026-53877

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.

How to fix CVE-2026-53877

To remediate CVE-2026-53877, upgrade the affected package to a fixed version below.

• —upgrade to 5.2.16 or later
• —upgrade to 5.2.16 or later

Is CVE-2026-53877 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• >= 5.2.0, < 5.2.16, >= 6.0.0, < 6.0.7
• >= 5.2, < 5.2.16, >= 6.0, < 6.0.7

CVSS scores

References (4)

• ADVISORYgroups.google.com/g/django-announce
• PATCHdocs.djangoproject.com/en/dev/releases/security/
• PATCHwww.djangoproject.com/weblog/2026/jul/07/security-releases/
• WEBnvd.nist.gov/vuln/detail/CVE-2026-53877