OSGeo gdal up to 3.13.0dev-4 SWapi.c SWnentries DimensionName heap-based overflow

Summaryinfo

A vulnerability identified as critical has been detected in OSGeo gdal up to 3.13.0dev-4. Impacted is the function SWnentries of the file frmts/hdf4/hdf-eos/SWapi.c. Performing a manipulation of the argument DimensionName results in heap-based overflow. This vulnerability is cataloged as CVE-2026-8086. The attack must be initiated from a local position. Furthermore, there is an exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in OSGeo gdal up to 3.13.0dev-4. This affects the function SWnentries of the file frmts/hdf4/hdf-eos/SWapi.c. The manipulation of the argument DimensionName with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-8086. The exploitability is told to be easy. Attacking locally is a requirement. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 313178 (Linux Distros Unpatched Vulnerability : CVE-2026-8086), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.12.4RC1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 9491e794f1757f08063ea2f7a274ad2994afa636 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (313178). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• OSGeo

Name

• gdal

Version

• 3.13.0dev-4

License

• open-source

Website

• Product: https://github.com/OSGeo/gdal/

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Submitinfo

Accepted

• Submit #808038: OSGeo GDAL 3.13.0dev Heap-based Buffer Overflow (by biniam)

Be aware that VulDB is the high quality source for vulnerability data.

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