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High

In GDAL 3.1.0 through 3.13.0, scanForGeometryContainers in the netCDF driver allows code execution via a stack-based buffer overflow. It reads a geometry attribute into a fixed-size stack buffer witho

  • Disclosed: 27.05.2026
  • Updated: 11.10.2026 14:18

In GDAL 3.1.0 through 3.13.0, scanForGeometryContainers in the netCDF driver allows code execution via a stack-based buffer overflow. It reads a geometry attribute into a fixed-size stack buffer without validating the attribute length. The attacker embeds the exploit as an oversized geometry attribute in a crafted NetCDF file. This achieves arbitrary code execution on the server running GDAL. This is in frmts/netcdf/netcdfsg.cpp.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) gdal >= 3.1.0, < 3.13.1 3.13.1

References

CVSS score 7.8/10
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-121
Platform
Python (PyPI)
Package
gdal
Disclosed
27.05.2026
Updated
11.10.2026 14:18

Sources and licenses

OSV / GitHub Advisory Database - GHSA-wphc-7cm7-8mf7 - CC BY 4.0

OSV / GitHub Advisory Database - PYSEC-2026-193 - PyPA Advisory Database; CC BY 4.0

Vulnerability history: gdal

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (11) in the archive
Total entries
11
First → latest
10.2019 05.2026
Without a fix
1
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 3
  • Medium 4
  • Low 3

Disclosures per year

Severity:
  1. In GDAL 3.1.0 through 3.13.0, scanForGeometryContainers in the netCDF driver allows code execution via a stack-based buffer overflow. It reads a geometry attribute into a fixed-size stack buffer witho this entry
    High · 7.8 CVE-2026-49014 >= 3.1.0, < 3.13.1 3.13.1
  2. A vulnerability was identified in OSGeo gdal up to 3.13.0dev-4. This issue affects the function SWnentries of the file frmts/hdf4/hdf-eos/SWapi.c. Such manipulation of the argument DimensionName leads
    High · 7.8 CVE-2026-8086 < 3.13.0 3.13.0
  3. netCDF in GDAL 2.4.2 through 3.0.4 has a stack-based buffer overflow in nc4_get_att (called from nc4_get_att_tc and nc_get_att_text) and in uffd_cleanup (called from netCDFDataset::~netCDFDataset and
    High · 7.8 CVE-2019-25050 >= 2.4.2, < 3.1.0 3.1.0
  4. GDAL through 3.0.1 has a poolDestroy double free in OGRExpatRealloc in ogr/ogr_expat.cpp when the 10MB threshold is exceeded.
    Critical · 9.8 CVE-2019-17545 < 3.0.2 3.0.2

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