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PatchSiren cyber security CVE debrief

CVE-2026-53877 djangoproject CVE debrief

An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16. The `django.contrib.gis.gdal.GDALRaster` class 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. Users of Django 6.0 before 6.0.7 and 5.2 before 5.2.16 should review and apply patches to prevent potential service degradation or adjacent memory disclosure.

Vendor
djangoproject
Product
Django
CVSS
MEDIUM 6.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-07
Original CVE updated
2026-07-07
Advisory published
2026-07-07
Advisory updated
2026-07-07

Who should care

Users of Django 6.0 before 6.0.7 and 5.2 before 5.2.16 should review and apply patches to prevent potential service degradation or adjacent memory disclosure. This includes operators, platform administrators, vulnerability management teams, and security teams who need to assess the impact of this vulnerability on their systems and take necessary actions.

Technical summary

The `django.contrib.gis.gdal.GDALRaster` class over-reads its in-memory buffer when constructed from a bytes object. This can lead to disclosure of adjacent memory or cause service degradation via a potential segmentation fault when the `vsi_buffer` property is accessed. The vulnerability has been assigned a CVSS score of 6.3, indicating a medium severity. Affected product deployments should be identified, and owners assigned for follow-up.

Defensive priority

Medium priority given the CVSS score of 6.3 and potential for service impact.

Recommended defensive actions

  • Review and apply Django patches for versions 6.0 before 6.0.7 and 5.2 before 5.2.16.
  • Inventory checks for affected Django versions and configurations.
  • Monitoring for potential service degradation or anomalies.
  • Exception tracking for `django.contrib.gis.gdal.GDALRaster` usage.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in `django.contrib.gis.gdal.GDALRaster`. However, evidence is limited, and further verification is recommended. Affected deployments should be identified, and owners assigned for follow-up. The vulnerability allows for potential disclosure of adjacent memory or service degradation via a segmentation fault when the `vsi_buffer` property is accessed. Defenders should verify affected scope, severity, and vendor guidance.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-07T15:16:48.453Z and has not been modified since then.