Out-of-bounds read in Django - CVE-2026-53877
Published: July 7, 2026
Vulnerability identifier: #VU137029
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-53877
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Django Software Foundation
Affected software:
Django
Django
Detailed vulnerability description
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to a heap-based buffer overflow in django.contrib.gis.gdal.GDALRaster vsi_buffer handling when parsing a bytes object representing a raster file. A local user can supply a crafted raster bytes object to disclose sensitive information.
Only rasters stored in GDAL's virtual filesystem are affected, and the issue may also cause a segmentation fault in rare cases.
How to mitigate CVE-2026-53877
Install security update from vendor's website.