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High severity · published May 7, 2026
CVE-2026-8086
OSGeo gdal SWapi.c SWnentries heap-based overflow
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
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 to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. Upgrading to version 3.12.4RC1 is capable of addressing this issue. The name of the patch is 9491e794f1757f08063ea2f7a274ad2994afa636. It is advisable to upgrade the affected component.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GD
gdal · OSGeo
3.13.0dev-4 · source: vendor, NVD
Affected product
GD
gdal
OSGeo
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8086
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8086
Product
https://github.com/OSGeo/gdal/
Patch
https://github.com/OSGeo/gdal/commit/9491e794f1757f08063ea2f7a274ad2994afa636
Exploit
https://github.com/OSGeo/gdal/issues/14356
Issue Tracking
https://github.com/OSGeo/gdal/pull/14361
Release Notes
https://github.com/OSGeo/gdal/releases/tag/v3.12.4RC1
Exploit
https://github.com/biniamf/pocs/tree/main/gdal-swinqdims_bof
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