CVE-2026-8086

OSGeo gdal SWapi.c SWnentries heap-based overflow

State: Published
Severity: 4.8 Medium
Published: May 7, 2026
Updated: May 7, 2026
Reserved: May 7, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	5.3 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
3.0	5.3 Medium	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
2.0	4.3 Medium	AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-122 Heap-based Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
gdalOSGeo	3.13.0dev-4Affected 3.12.4RC1Not affected

References

VDB-361839 | OSGeo gdal SWapi.c SWnentries heap-based overflowvdb-entrytechnical-description
VDB-361839 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #808038 | OSGeo GDAL 3.13.0dev Heap-based Buffer Overflowthird-party-advisory
https://github.com/OSGeo/gdal/issues/14356issue-tracking
https://github.com/OSGeo/gdal/pull/14361issue-trackingpatch
https://github.com/biniamf/pocs/tree/main/gdal-swinqdims_bofexploit
https://github.com/OSGeo/gdal/commit/9491e794f1757f08063ea2f7a274ad2994afa636patch
https://github.com/OSGeo/gdal/releases/tag/v3.12.4RC1patch
https://github.com/OSGeo/gdal/product

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